#2D378F#2D378F

#2D378F is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.5% C 0.144 H 272.7°. Best body text is #FFFFFF at 10.22:1 contrast (WCAG AA passes).

Color values

HEX	#2D378F
RGB	rgb(45, 55, 143)
HSL	hsl(234, 52%, 37%)
HSV	hsv(234, 69%, 56%)
CMYK	cmyk(68.5%, 61.5%, 0%, 43.9%)
CIE-LAB	lab(27.50, 26.05, -50.04)
CIE-LCH	lch(27.50, 56.42, 297.50°)
OKLab	oklab(38.53% 0.0067 -0.1442)
OKLCH	oklch(38.53% 0.144 272.7)
XYZ	xyz(7.4046, 5.2728, 26.6088)
Luminance	0.0527 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D378F #8F852D

analogous

#2D688F #2D378F #542D8F

triadic

#2D378F #8F2D37 #378F2D

tetradic

#2D378F #8F2D68 #8F852D #2D8F54

square

#2D378F #8F2D68 #8F852D #2D8F54

split-complementary

#2D378F #8F542D #688F2D

monochromatic

#101332 #1E2560 #2D378F #3C49BE #6772CF

Accessibility & contrast

On white

10.22

#2D378F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#2D378F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D378F

10.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D378F	#FFFFFF	#000000	##FFFFFF
##2D378F	1.00	10.22	2.05	10.22
#FFFFFF	10.22	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004592

Deuteranopia (green-blind)

#003D8D

Tritanopia (blue-blind)

#004D5D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2d378f;
/* rgb */ color: rgb(45, 55, 143);
/* oklch */ color: oklch(38.5% 0.144 272.7);

Tailwind

colors: {
  custom: {
    50: '#736db1',
    500: '#2d378f',
    950: '#000000',
  },
}

SCSS

$custom: #2d378f;
$custom-light: #736db1;
$custom-dark: #000000;

JSON

{
  "hex": "#2d378f",
  "rgb": {
    "r": 45,
    "g": 55,
    "b": 143
  },
  "hsl": {
    "h": 233.878,
    "s": 52.128,
    "l": 36.863
  },
  "oklch": {
    "l": 0.38529,
    "c": 0.14438,
    "h": 272.7
  },
  "luminance": 0.05273
}

Semantic roles & 50–950 ramp

primary

#2D378F

secondary

#B6AD62

accent

#CD4CDC

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #2D378F

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

Preview Lab → · Contrast checker → · Palette generator →