#2640AF#2640AF

#2640AF is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.8% C 0.179 H 267.6°. Best body text is #FFFFFF at 8.62:1 contrast (WCAG AA passes).

Color values

HEX	#2640AF
RGB	rgb(38, 64, 175)
HSL	hsl(229, 64%, 42%)
HSV	hsv(229, 78%, 69%)
CMYK	cmyk(78.3%, 63.4%, 0%, 31.4%)
CIE-LAB	lab(32.20, 31.16, -61.78)
CIE-LCH	lch(32.20, 69.19, 296.76°)
OKLab	oklab(42.76% -0.0074 -0.1787)
OKLCH	oklch(42.76% 0.179 267.6)
XYZ	xyz(10.3679, 7.1728, 41.3872)
Luminance	0.0717 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2640AF #AF9526

analogous

#2685AF #2640AF #5126AF

triadic

#2640AF #AF2640 #40AF26

tetradic

#2640AF #AF2685 #AF9526 #26AF51

square

#2640AF #AF2685 #AF9526 #26AF51

split-complementary

#2640AF #AF5126 #85AF26

monochromatic

#101B4A #1B2E7D #2640AF #3D5AD5 #7085E0

Accessibility & contrast

On white

8.62

#2640AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#2640AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2640AF

8.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2640AF	#FFFFFF	#000000	##FFFFFF
##2640AF	1.00	8.62	2.43	8.62
#FFFFFF	8.62	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B3

Deuteranopia (green-blind)

#0045AD

Tritanopia (blue-blind)

#005D71

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #2640af;
/* rgb */ color: rgb(38, 64, 175);
/* oklch */ color: oklch(42.8% 0.179 267.6);

Tailwind

colors: {
  custom: {
    50: '#7774c8',
    500: '#2640af',
    950: '#000000',
  },
}

SCSS

$custom: #2640af;
$custom-light: #7774c8;
$custom-dark: #000000;

JSON

{
  "hex": "#2640af",
  "rgb": {
    "r": 38,
    "g": 64,
    "b": 175
  },
  "hsl": {
    "h": 228.613,
    "s": 64.319,
    "l": 41.765
  },
  "oklch": {
    "l": 0.42757,
    "c": 0.17885,
    "h": 267.6
  },
  "luminance": 0.07174
}

Semantic roles & 50–950 ramp

primary

#2640AF

secondary

#C7B56A

accent

#C840E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2640AF

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

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