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#1D1ACB Color

#1D1ACB is rgb(29, 26, 203) in RGB, hsl(241, 77%, 45%) in HSL, and about cmyk(86%, 87%, 0%, 20%) in CMYK. It has no registered color name of its own — the closest is Medium Blue (#0000CD), clearly related but distinguishable side by side at ΔE 9.68. White text is the more readable choice on this background.

#1D1ACB
HEX#1D1ACB
RGBrgb(29, 26, 203)
HSLhsl(241, 77%, 45%)
HSVhsv(241, 87%, 80%)
CMYKcmyk(86%, 87%, 0%, 20%)
OKLCHoklch(40.3% 0.249 268.1)
LABlab(25.67% 51.16 -88.81)
LCHlch(25.67% 102.49 299.94)

What #1D1ACB Is Called

Most hex codes have no name: there are 16.7 million of them and a few thousand registered names. These are the named colors nearest to #1D1ACB, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Medium Blue#0000CDΔE 9.68Palatinate Blue#273BE2ΔE 12.63Iridescent Indigo#3C32CDΔE 13.54Neon Blue#1B03A3ΔE 13.71Zaffer (Zaffre)#0014A8ΔE 14.37Duke Blue#00009CΔE 15.57

Browse the full index of named colors A-Z or every blue in the library.

#1D1ACB Channel Values

How #1D1ACB breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.

ModelChannelsNotes
RGBR 29 · G 26 · B 2038-bit channels as sent to the display
HSLH 241° · S 77% · L 45%Easiest model for building lighter and darker variants
HSVH 241° · S 87% · V 80%Matches the picker in most design tools
CMYKC 86% · M 87% · Y 0% · K 20%Approximate ink mix; confirm with an ICC profile before printing
Luminance10.18:1 vs white · 2.06:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #1D1ACB background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1. Contrast is one check, not a full accessibility review.

TextWhite text10.18:1AA normal AA large AAA normal
Fails AABlack text2.06:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #1D1ACB in the contrast checker.

Colors That Go With #1D1ACB

Pairings derived from color-wheel relationships. The complementary color sits opposite #1D1ACB; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#1D1ACB
Complementary
#C8CB1A
Analogous
#1A70CB
Analogous
#761ACB
Triadic
#CB1D1A
Triadic
#1ACB1D
Split comp.
#CB761A
Split comp.
#70CB1A

Tints & Shades of #1D1ACB

Lighter tints and darker shades built by moving the lightness channel while holding hue and saturation, which is what you want for hover states, backgrounds, and text variants.

Tints

#2E2BE3
#4D4AE8
#716FEC
#908EF0
#B3B2F5
#D3D2F9

Shades

#1917B0
#161395
#12107A
#0E0D63
#0A0948
#07062D

Want a full 50-950 ramp with semantic roles? Generate design tokens from #1D1ACB.

How #1D1ACB Looks with Color Vision Deficiency

Simulated with the Viénot, Brettel & Mollon LMS projection model. Anomalous types are rendered as partial versions of the matching dichromacy, which is an approximation rather than a per-person clinical model.

Typical#1D1ACB
Protanopia#1B1BCB
Protanomaly#1C1ACB
Deuteranopia#1B1BCB
Deuteranomaly#1C1BCB
Tritanopia#005252
Tritanomaly#004292
Achromatopsia#414141

Test a full palette in the color blindness simulator.

Using #1D1ACB in Code

Copy-ready declarations for the places this color usually ends up.

CSS custom property--color-1d1acb: #1D1ACB;
CSS backgroundbackground-color: #1D1ACB;
Tailwind configcolors: { 'color-1d1acb': '#1D1ACB' }
SwiftUIColor(red: 0.114, green: 0.102, blue: 0.796)
Android XML<color name="color_1d1acb">#1D1ACB</color>
SVG fillfill="#1D1ACB"

More Blue Colors

#1D1ACB sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.

000024fafaff00002ef9fafb000033f8fafc000038f8f8ff000042f5faff000047f5f5ff002147007dfa0f52ba1c39bb2a3439372aac4e3cc364609a7abdff979aaab8dbffd6d6ff

#1D1ACB Frequently Asked Questions

What color is #1D1ACB?

#1D1ACB is a mid-tone blue — rgb(29, 26, 203) in RGB and hsl(241, 77%, 45%) in HSL. It carries no registered color name of its own; the closest named color is Medium Blue (#0000CD), which is clearly related but distinguishable side by side at a CIE76 distance of 9.68.

What is the RGB value of #1D1ACB?

#1D1ACB is rgb(29, 26, 203) — red 29, green 26, and blue 203 on the 0-255 scale.

What is the CMYK value of #1D1ACB?

#1D1ACB converts to approximately cmyk(86%, 87%, 0%, 20%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #1D1ACB be black or white?

White text is the more readable choice. #1D1ACB scores 10.18:1 against white and 2.06:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #1D1ACB as a CSS color keyword?

No. #1D1ACB is not one of the CSS color keywords, so it has to be written as a hex, rgb() or hsl() value. The closest keyword is mediumblue (#0000CD) at a CIE76 distance of 9.68, which is clearly related but distinguishable side by side.

Open #1D1ACB in a Tool

Hex to RGBHex to HSLHex to CMYKHex to OKLCHHex to PantoneBuild a paletteMake a gradient

Keep exploring: every blue in the color library, the guide to shades of blue, or the full color library.