#37458D#37458D

#37458D is a dark, moderate blue. Relative luminance 0.070; OKLCH L 41.9% C 0.120 H 272.0°. Best body text is #FFFFFF at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#37458D
RGB	rgb(55, 69, 141)
HSL	hsl(230, 44%, 38%)
HSV	hsv(230, 61%, 55%)
CMYK	cmyk(61%, 51.1%, 0%, 44.7%)
CIE-LAB	lab(31.79, 17.71, -41.84)
CIE-LCH	lch(31.79, 45.43, 292.94°)
OKLab	oklab(41.86% 0.0042 -0.1197)
OKLCH	oklch(41.86% 0.12 272)
XYZ	xyz(8.5098, 6.9909, 26.0951)
Luminance	0.0699 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37458D #8D7F37

analogous

#37708D #37458D #54378D

triadic

#37458D #8D3745 #458D37

tetradic

#37458D #8D3770 #8D7F37 #378D54

square

#37458D #8D3770 #8D7F37 #378D54

split-complementary

#37458D #8D5437 #708D37

monochromatic

#151A35 #262F61 #37458D #495BB8 #7583C9

Accessibility & contrast

On white

8.76

#37458D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#37458D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37458D

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37458D	#FFFFFF	#000000	##FFFFFF
##37458D	1.00	8.76	2.40	8.76
#FFFFFF	8.76	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4F90

Deuteranopia (green-blind)

#0E478B

Tritanopia (blue-blind)

#005562

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #37458d;
/* rgb */ color: rgb(55, 69, 141);
/* oklch */ color: oklch(41.9% 0.120 272.0);

Tailwind

colors: {
  custom: {
    50: '#7678af',
    500: '#37458d',
    950: '#000000',
  },
}

SCSS

$custom: #37458d;
$custom-light: #7678af;
$custom-dark: #000000;

JSON

{
  "hex": "#37458d",
  "rgb": {
    "r": 55,
    "g": 69,
    "b": 141
  },
  "hsl": {
    "h": 230.233,
    "s": 43.878,
    "l": 38.431
  },
  "oklch": {
    "l": 0.41862,
    "c": 0.11974,
    "h": 272
  },
  "luminance": 0.06992
}

Semantic roles & 50–950 ramp

primary

#37458D

secondary

#B2A76E

accent

#BF54D4

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #37458D

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

Preview Lab → · Contrast checker → · Palette generator →