#4279DC#4279DC

#4279DC is a mid, vivid blue. Relative luminance 0.200; OKLCH L 58.9% C 0.162 H 261.1°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#4279DC
RGB	rgb(66, 121, 220)
HSL	hsl(219, 69%, 56%)
HSV	hsv(219, 70%, 86%)
CMYK	cmyk(70%, 45%, 0%, 13.7%)
CIE-LAB	lab(51.84, 14.59, -55.98)
CIE-LCH	lch(51.84, 57.85, 284.61°)
OKLab	oklab(58.95% -0.0251 -0.1603)
OKLCH	oklch(58.95% 0.162 261.1)
XYZ	xyz(21.9978, 19.9980, 70.3969)
Luminance	0.2000 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4279DC #DCA542

analogous

#42C6DC #4279DC #5842DC

triadic

#4279DC #DC4279 #79DC42

tetradic

#4279DC #DC42C6 #DCA542 #42DC58

square

#4279DC #DC42C6 #DCA542 #42DC58

split-complementary

#4279DC #DC5842 #C6DC42

monochromatic

#1A428A #235ABE #4279DC #769EE6 #A9C2EF

Accessibility & contrast

On white

4.20

#4279DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#4279DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4279DC

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4279DC	#FFFFFF	#000000	##000000
##4279DC	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4783E0

Deuteranopia (green-blind)

#2875DA

Tritanopia (blue-blind)

#0090A0

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #4279dc;
/* rgb */ color: rgb(66, 121, 220);
/* oklch */ color: oklch(58.9% 0.162 261.1);

Tailwind

colors: {
  custom: {
    50: '#889fe7',
    500: '#4279dc',
    950: '#000000',
  },
}

SCSS

$custom: #4279dc;
$custom-light: #889fe7;
$custom-dark: #000000;

JSON

{
  "hex": "#4279dc",
  "rgb": {
    "r": 66,
    "g": 121,
    "b": 220
  },
  "hsl": {
    "h": 218.571,
    "s": 68.75,
    "l": 56.078
  },
  "oklch": {
    "l": 0.58948,
    "c": 0.16223,
    "h": 261.1
  },
  "luminance": 0.2
}

Semantic roles & 50–950 ramp

primary

#4279DC

secondary

#DDC69D

accent

#AD3CEC

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4279DC

Body copy rendered with the generated semantic roles for this colour.

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