#37288D#37288D

#37288D is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.5% C 0.158 H 281.9°. Best body text is #FFFFFF at 11.35:1 contrast (WCAG AA passes).

Color values

HEX	#37288D
RGB	rgb(55, 40, 141)
HSL	hsl(249, 56%, 35%)
HSV	hsv(249, 72%, 55%)
CMYK	cmyk(61%, 71.6%, 0%, 44.7%)
CIE-LAB	lab(24.49, 36.46, -53.69)
CIE-LCH	lch(24.49, 64.90, 304.17°)
OKLab	oklab(36.48% 0.0327 -0.1547)
OKLCH	oklch(36.48% 0.158 281.9)
XYZ	xyz(7.1406, 4.2524, 25.6387)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37288D #7E8D28

analogous

#284B8D #37288D #69288D

triadic

#37288D #8D3728 #288D37

tetradic

#37288D #8D284B #7E8D28 #288D69

square

#37288D #8D284B #7E8D28 #288D69

split-complementary

#37288D #8D6928 #4B8D28

monochromatic

#120D2E #241A5D #37288D #4A36BD #6F5ED1

Accessibility & contrast

On white

11.35

#37288D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#37288D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37288D

11.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37288D	#FFFFFF	#000000	##FFFFFF
##37288D	1.00	11.35	1.85	11.35
#FFFFFF	11.35	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E90

Deuteranopia (green-blind)

#00378B

Tritanopia (blue-blind)

#004357

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #37288d;
/* rgb */ color: rgb(55, 40, 141);
/* oklch */ color: oklch(36.5% 0.158 281.9);

Tailwind

colors: {
  custom: {
    50: '#7863af',
    500: '#37288d',
    950: '#000000',
  },
}

SCSS

$custom: #37288d;
$custom-light: #7863af;
$custom-dark: #000000;

JSON

{
  "hex": "#37288d",
  "rgb": {
    "r": 55,
    "g": 40,
    "b": 141
  },
  "hsl": {
    "h": 248.911,
    "s": 55.801,
    "l": 35.49
  },
  "oklch": {
    "l": 0.36477,
    "c": 0.15811,
    "h": 281.9
  },
  "luminance": 0.04253
}

Semantic roles & 50–950 ramp

primary

#37288D

secondary

#A9B75A

accent

#DF49C9

background

#F7F6FA

surface

#EEEBF5

border

#C9C6CF

text

#0A0510

muted

#7C7A7F

Preview Lab

Preview with #37288D

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

Preview Lab → · Contrast checker → · Palette generator →