#37459D#37459D

#37459D is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.1% C 0.143 H 272.2°. Best body text is #FFFFFF at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#37459D
RGB	rgb(55, 69, 157)
HSL	hsl(232, 48%, 42%)
HSV	hsv(232, 65%, 62%)
CMYK	cmyk(65%, 56.1%, 0%, 38.4%)
CIE-LAB	lab(32.92, 23.48, -49.75)
CIE-LCH	lch(32.92, 55.02, 295.27°)
OKLab	oklab(43.08% 0.0054 -0.1429)
OKLCH	oklch(43.08% 0.143 272.2)
XYZ	xyz(9.7874, 7.5019, 32.8240)
Luminance	0.0750 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37459D #9D8F37

analogous

#37789D #37459D #5C379D

triadic

#37459D #9D3745 #459D37

tetradic

#37459D #9D3778 #9D8F37 #379D5C

square

#37459D #9D3778 #9D8F37 #379D5C

split-complementary

#37459D #9D5C37 #789D37

monochromatic

#171D42 #273170 #37459D #505FC2 #7D89D1

Accessibility & contrast

On white

8.40

#37459D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#37459D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37459D

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37459D	#FFFFFF	#000000	##FFFFFF
##37459D	1.00	8.40	2.50	8.40
#FFFFFF	8.40	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052A0

Deuteranopia (green-blind)

#00499B

Tritanopia (blue-blind)

#005A6A

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #37459d;
/* rgb */ color: rgb(55, 69, 157);
/* oklch */ color: oklch(43.1% 0.143 272.2);

Tailwind

colors: {
  custom: {
    50: '#7978bb',
    500: '#37459d',
    950: '#000000',
  },
}

SCSS

$custom: #37459d;
$custom-light: #7978bb;
$custom-dark: #000000;

JSON

{
  "hex": "#37459d",
  "rgb": {
    "r": 55,
    "g": 69,
    "b": 157
  },
  "hsl": {
    "h": 231.765,
    "s": 48.113,
    "l": 41.569
  },
  "oklch": {
    "l": 0.43081,
    "c": 0.14305,
    "h": 272.2
  },
  "luminance": 0.07503
}

Semantic roles & 50–950 ramp

primary

#37459D

secondary

#BBB175

accent

#C550D8

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #37459D

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

Preview Lab → · Contrast checker → · Palette generator →