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#427AE0 Color

#427AE0 is rgb(66, 122, 224) in RGB, hsl(219, 72%, 57%) in HSL, and about cmyk(71%, 46%, 0%, 12%) in CMYK. It has no registered color name of its own — the closest is Han Blue (#446CCF), clearly related but distinguishable side by side at ΔE 6.19. Black text is the more readable choice on this background.

#427AE0
HEX#427AE0
RGBrgb(66, 122, 224)
HSLhsl(219, 72%, 57%)
HSVhsv(219, 71%, 88%)
CMYKcmyk(71%, 46%, 0%, 12%)
OKLCHoklch(59.4% 0.166 261.2)
LABlab(51.48% 7.74 -58.58)
LCHlch(51.48% 59.09 277.53)

What #427AE0 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 #427AE0, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Han Blue#446CCFΔE 6.19Blueberry#4F86F7ΔE 7.18Bright Navy Blue#1974D2ΔE 7.23Microsoft Edge Blue#0078D7ΔE 8.19True Blue#0073CFΔE 9.08Indigo (Crayola)#4F69C6ΔE 9.5

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

#427AE0 Channel Values

How #427AE0 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 66 · G 122 · B 2248-bit channels as sent to the display
HSLH 219° · S 72% · L 57%Easiest model for building lighter and darker variants
HSVH 219° · S 71% · V 88%Matches the picker in most design tools
CMYKC 71% · M 46% · Y 0% · K 12%Approximate ink mix; confirm with an ICC profile before printing
Luminance4.12:1 vs white · 5.09:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #427AE0 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.

Fails AAWhite text4.12:1AA normal AA large AAA normal
TextBlack text5.09:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #427AE0 in the contrast checker.

Colors That Go With #427AE0

Pairings derived from color-wheel relationships. The complementary color sits opposite #427AE0; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#427AE0
Complementary
#E0A942
Analogous
#42C9E0
Analogous
#5A42E0
Triadic
#E0427A
Triadic
#7AE042
Split comp.
#E05A42
Split comp.
#C9E042

Tints & Shades of #427AE0

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

#5D8CE5
#779FE9
#91B1ED
#A7C1F1
#C2D4F5
#DCE6F9

Shades

#2362D7
#1E54B8
#184495
#133676
#0E2653
#091835

Want a full 50-950 ramp with semantic roles? Generate design tokens from #427AE0.

How #427AE0 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#427AE0
Protanopia#7373E0
Protanomaly#6376E0
Deuteranopia#6B6BE1
Deuteranomaly#5E72E0
Tritanopia#008C8C
Tritanomaly#1D85B4
Achromatopsia#7D7D7D

Test a full palette in the color blindness simulator.

Using #427AE0 in Code

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

CSS custom property--color-427ae0: #427AE0;
CSS backgroundbackground-color: #427AE0;
Tailwind configcolors: { 'color-427ae0': '#427AE0' }
SwiftUIColor(red: 0.259, green: 0.478, blue: 0.878)
Android XML<color name="color_427ae0">#427AE0</color>
SVG fillfill="#427AE0"

More Blue Colors

#427AE0 sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.

000024fafaff00002ef9fafb000033f8fafc000038f8f8ff000042f5faff000047f5f5ff002147007dfa0f52ba1c39bb2a3439372aac4e3cc364609a7abdff979aaab8dbffd6d6ff

#427AE0 Frequently Asked Questions

What color is #427AE0?

#427AE0 is a mid-tone blue — rgb(66, 122, 224) in RGB and hsl(219, 72%, 57%) in HSL. It carries no registered color name of its own; the closest named color is Han Blue (#446CCF), which is clearly related but distinguishable side by side at a CIE76 distance of 6.19.

What is the RGB value of #427AE0?

#427AE0 is rgb(66, 122, 224) — red 66, green 122, and blue 224 on the 0-255 scale.

What is the CMYK value of #427AE0?

#427AE0 converts to approximately cmyk(71%, 46%, 0%, 12%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #427AE0 be black or white?

Black text is the more readable choice. #427AE0 scores 4.12:1 against white and 5.09:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #427AE0 as a CSS color keyword?

No. #427AE0 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 dodgerblue (#1E90FF) at a CIE76 distance of 11.53, which is visibly different.

Open #427AE0 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.