#2639AB#2639AB

#2639AB is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.1% C 0.182 H 269.0°. Best body text is #FFFFFF at 9.31:1 contrast (WCAG AA passes).

Color values

HEX	#2639AB
RGB	rgb(38, 57, 171)
HSL	hsl(231, 64%, 41%)
HSV	hsv(231, 78%, 67%)
CMYK	cmyk(77.8%, 66.7%, 0%, 32.9%)
CIE-LAB	lab(30.10, 34.22, -62.82)
CIE-LCH	lch(30.10, 71.54, 298.58°)
OKLab	oklab(41.11% -0.0032 -0.1818)
OKLCH	oklch(41.11% 0.182 269)
XYZ	xyz(9.6106, 6.2775, 39.2254)
Luminance	0.0628 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.98

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2639AB #AB9826

analogous

#267BAB #2639AB #5626AB

triadic

#2639AB #AB2639 #39AB26

tetradic

#2639AB #AB267B #AB9826 #26AB56

square

#2639AB #AB267B #AB9826 #26AB56

split-complementary

#2639AB #AB5626 #7BAB26

monochromatic

#101847 #1B2879 #2639AB #3B51D3 #6D7DDF

Accessibility & contrast

On white

9.31

#2639AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#2639AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2639AB

9.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2639AB	#FFFFFF	#000000	##FFFFFF
##2639AB	1.00	9.31	2.26	9.31
#FFFFFF	9.31	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DAF

Deuteranopia (green-blind)

#0041A9

Tritanopia (blue-blind)

#00586D

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2639ab;
/* rgb */ color: rgb(38, 57, 171);
/* oklch */ color: oklch(41.1% 0.182 269.0);

Tailwind

colors: {
  custom: {
    50: '#776fc5',
    500: '#2639ab',
    950: '#000000',
  },
}

SCSS

$custom: #2639ab;
$custom-light: #776fc5;
$custom-dark: #000000;

JSON

{
  "hex": "#2639ab",
  "rgb": {
    "r": 38,
    "g": 57,
    "b": 171
  },
  "hsl": {
    "h": 231.429,
    "s": 63.636,
    "l": 40.98
  },
  "oklch": {
    "l": 0.41107,
    "c": 0.18184,
    "h": 269
  },
  "luminance": 0.06279
}

Semantic roles & 50–950 ramp

primary

#2639AB

secondary

#C5B868

accent

#CF41E7

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2639AB

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

Preview Lab → · Contrast checker → · Palette generator →