#154CB2 Color

#154CB2 is rgb(21, 76, 178) in RGB, hsl(219, 79%, 39%) in HSL, and about cmyk(88%, 57%, 0%, 30%) in CMYK. It has no registered color name of its own — the closest is Cobalt Blue (#0047AB), very hard to tell apart at ΔE 2.39. White text is the more readable choice on this background.

#154CB2

HEX#154CB2

RGBrgb(21, 76, 178)

HSLhsl(219, 79%, 39%)

HSVhsv(219, 88%, 70%)

CMYKcmyk(88%, 57%, 0%, 30%)

OKLCHoklch(44.8% 0.172 261.5)

LABlab(34.08% 14.91 -60.27)

LCHlch(34.08% 62.08 283.89)

What #154CB2 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 #154CB2, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Cobalt Blue#0047ABΔE 2.39 Sapphire#0F52BAΔE 2.85 Cerulean Blue#2A52BEΔE 4.44 Violet-blue#324AB2ΔE 4.95 Absolute Zero#0048BAΔE 7.53 New Car#214FC6ΔE 9.87

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

#154CB2 Channel Values

How #154CB2 breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.

Model	Channels	Notes
RGB	R 21 · G 76 · B 178	8-bit channels as sent to the display
HSL	H 219° · S 79% · L 39%	Easiest model for building lighter and darker variants
HSV	H 219° · S 88% · V 70%	Matches the picker in most design tools
CMYK	C 88% · M 57% · Y 0% · K 30%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	7.75:1 vs white · 2.71:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #154CB2 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 text7.75:1AA normal AA large AAA normal

Fails AABlack text2.71:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #154CB2 in the contrast checker.

Colors That Go With #154CB2

Pairings derived from color-wheel relationships. The complementary color sits opposite #154CB2; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base

Complementary

Analogous

Analogous

Triadic

Triadic

Split comp.

Split comp.

Tints & Shades of #154CB2

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

Shades

Want a full 50-950 ramp with semantic roles? Generate design tokens from #154CB2.

How #154CB2 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#154CB2

Protanopia#4646B2

Protanomaly#3848B2

Deuteranopia#4040B2

Deuteranomaly#3345B2

Tritanopia#006161

Tritanomaly#005989

Achromatopsia#525252

Test a full palette in the color blindness simulator.

Using #154CB2 in Code

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

CSS custom property--color-154cb2: #154CB2;

CSS backgroundbackground-color: #154CB2;

Tailwind configcolors: { 'color-154cb2': '#154CB2' }

SwiftUIColor(red: 0.082, green: 0.298, blue: 0.698)

Android XML<color name="color_154cb2">#154CB2</color>

SVG fillfill="#154CB2"

More Blue Colors

#154CB2 sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.

155dfc 1447e6 1560bd 132c77 161664 13135e 162456 130e2f 172436 12279e 173796 121254 213d54 314158 4169e1 5649a7 6b6bff 87cefa a2a2d0 c3baf7 dff2fe 000042 003153 020618

#154CB2 Frequently Asked Questions

What color is #154CB2?

#154CB2 is a dark blue — rgb(21, 76, 178) in RGB and hsl(219, 79%, 39%) in HSL. It carries no registered color name of its own; the closest named color is Cobalt Blue (#0047AB), which is very hard to tell apart at a CIE76 distance of 2.39.

What is the RGB value of #154CB2?

#154CB2 is rgb(21, 76, 178) — red 21, green 76, and blue 178 on the 0-255 scale.

What is the CMYK value of #154CB2?

#154CB2 converts to approximately cmyk(88%, 57%, 0%, 30%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #154CB2 be black or white?

White text is the more readable choice. #154CB2 scores 7.75:1 against white and 2.71:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #154CB2 as a CSS color keyword?

No. #154CB2 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 royalblue (#4169E1) at a CIE76 distance of 14.52, which is visibly different.

Open #154CB2 in a Tool

Hex to RGB Hex to HSL Hex to CMYK Hex to OKLCH Hex to Pantone Build a palette Make a gradient

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