#37288E#37288E

#37288E is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.6% C 0.159 H 281.8°. Best body text is #FFFFFF at 11.31:1 contrast (WCAG AA passes).

Color values

HEX	#37288E
RGB	rgb(55, 40, 142)
HSL	hsl(249, 56%, 36%)
HSV	hsv(249, 72%, 56%)
CMYK	cmyk(61.3%, 71.8%, 0%, 44.3%)
CIE-LAB	lab(24.58, 36.78, -54.16)
CIE-LCH	lch(24.58, 65.47, 304.18°)
OKLab	oklab(36.57% 0.0325 -0.1561)
OKLCH	oklch(36.57% 0.159 281.8)
XYZ	xyz(7.2153, 4.2823, 26.0323)
Luminance	0.0428 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37288E #7F8E28

analogous

#284C8E #37288E #6A288E

triadic

#37288E #8E3728 #288E37

tetradic

#37288E #8E284C #7F8E28 #288E6A

square

#37288E #8E284C #7F8E28 #288E6A

split-complementary

#37288E #8E6A28 #4C8E28

monochromatic

#120D2F #251B5E #37288E #4935BE #705FD2

Accessibility & contrast

On white

11.31

#37288E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#37288E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37288E

11.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37288E	#FFFFFF	#000000	##FFFFFF
##37288E	1.00	11.31	1.86	11.31
#FFFFFF	11.31	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E91

Deuteranopia (green-blind)

#00378C

Tritanopia (blue-blind)

#004358

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #37288e;
/* rgb */ color: rgb(55, 40, 142);
/* oklch */ color: oklch(36.6% 0.159 281.8);

Tailwind

colors: {
  custom: {
    50: '#7963b0',
    500: '#37288e',
    950: '#000000',
  },
}

SCSS

$custom: #37288e;
$custom-light: #7963b0;
$custom-dark: #000000;

JSON

{
  "hex": "#37288e",
  "rgb": {
    "r": 55,
    "g": 40,
    "b": 142
  },
  "hsl": {
    "h": 248.824,
    "s": 56.044,
    "l": 35.686
  },
  "oklch": {
    "l": 0.36574,
    "c": 0.15941,
    "h": 281.8
  },
  "luminance": 0.04283
}

Semantic roles & 50–950 ramp

primary

#37288E

secondary

#AAB75B

accent

#DF48C9

background

#F7F6FA

surface

#EEEBF5

border

#C9C6CF

text

#0A0511

muted

#7C7A80

Preview Lab

Preview with #37288E

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

Preview Lab → · Contrast checker → · Palette generator →