#2D378E#2D378E

#2D378E is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.4% C 0.143 H 272.7°. Best body text is #FFFFFF at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#2D378E
RGB	rgb(45, 55, 142)
HSL	hsl(234, 52%, 37%)
HSV	hsv(234, 68%, 56%)
CMYK	cmyk(68.3%, 61.3%, 0%, 44.3%)
CIE-LAB	lab(27.41, 25.68, -49.56)
CIE-LCH	lch(27.41, 55.82, 297.39°)
OKLab	oklab(38.44% 0.0068 -0.1428)
OKLCH	oklch(38.44% 0.143 272.7)
XYZ	xyz(7.3292, 5.2426, 26.2116)
Luminance	0.0524 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D378E #8E842D

analogous

#2D688E #2D378E #532D8E

triadic

#2D378E #8E2D37 #378E2D

tetradic

#2D378E #8E2D68 #8E842D #2D8E53

square

#2D378E #8E2D68 #8E842D #2D8E53

split-complementary

#2D378E #8E532D #688E2D

monochromatic

#101331 #1E2560 #2D378E #3C49BC #6771CF

Accessibility & contrast

On white

10.25

#2D378E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#2D378E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D378E

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D378E	#FFFFFF	#000000	##FFFFFF
##2D378E	1.00	10.25	2.05	10.25
#FFFFFF	10.25	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004591

Deuteranopia (green-blind)

#003C8C

Tritanopia (blue-blind)

#004D5D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2d378e;
/* rgb */ color: rgb(45, 55, 142);
/* oklch */ color: oklch(38.4% 0.143 272.7);

Tailwind

colors: {
  custom: {
    50: '#726db0',
    500: '#2d378e',
    950: '#000000',
  },
}

SCSS

$custom: #2d378e;
$custom-light: #726db0;
$custom-dark: #000000;

JSON

{
  "hex": "#2d378e",
  "rgb": {
    "r": 45,
    "g": 55,
    "b": 142
  },
  "hsl": {
    "h": 233.814,
    "s": 51.872,
    "l": 36.667
  },
  "oklch": {
    "l": 0.38442,
    "c": 0.14297,
    "h": 272.7
  },
  "luminance": 0.05243
}

Semantic roles & 50–950 ramp

primary

#2D378E

secondary

#B5AD61

accent

#CD4CDB

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #2D378E

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

Preview Lab → · Contrast checker → · Palette generator →