#2639A8#2639A8

#2639A8 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.8% C 0.178 H 269.0°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#2639A8
RGB	rgb(38, 57, 168)
HSL	hsl(231, 63%, 40%)
HSV	hsv(231, 77%, 66%)
CMYK	cmyk(77.4%, 66.1%, 0%, 34.1%)
CIE-LAB	lab(29.82, 33.12, -61.48)
CIE-LCH	lch(29.82, 69.83, 298.31°)
OKLab	oklab(40.82% -0.003 -0.1779)
OKLCH	oklch(40.82% 0.178 269)
XYZ	xyz(9.3279, 6.1644, 37.7364)
Luminance	0.0617 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2639A8 #A89526

analogous

#267AA8 #2639A8 #5426A8

triadic

#2639A8 #A82639 #39A826

tetradic

#2639A8 #A8267A #A89526 #26A854

square

#2639A8 #A8267A #A89526 #26A854

split-complementary

#2639A8 #A85426 #7AA826

monochromatic

#0F1744 #1B2876 #2639A8 #394FD2 #6B7CDE

Accessibility & contrast

On white

9.40

#2639A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#2639A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2639A8

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2639A8	#FFFFFF	#000000	##FFFFFF
##2639A8	1.00	9.40	2.23	9.40
#FFFFFF	9.40	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DAC

Deuteranopia (green-blind)

#0040A6

Tritanopia (blue-blind)

#00576B

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2639a8;
/* rgb */ color: rgb(38, 57, 168);
/* oklch */ color: oklch(40.8% 0.178 269.0);

Tailwind

colors: {
  custom: {
    50: '#766fc3',
    500: '#2639a8',
    950: '#000000',
  },
}

SCSS

$custom: #2639a8;
$custom-light: #766fc3;
$custom-dark: #000000;

JSON

{
  "hex": "#2639a8",
  "rgb": {
    "r": 38,
    "g": 57,
    "b": 168
  },
  "hsl": {
    "h": 231.231,
    "s": 63.107,
    "l": 40.392
  },
  "oklch": {
    "l": 0.40818,
    "c": 0.17792,
    "h": 269
  },
  "luminance": 0.06165
}

Semantic roles & 50–950 ramp

primary

#2639A8

secondary

#C4B666

accent

#CE42E6

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2639A8

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

Preview Lab → · Contrast checker → · Palette generator →