#37288A#37288A

#37288A is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.2% C 0.154 H 282.5°. Best body text is #FFFFFF at 11.46:1 contrast (WCAG AA passes).

Color values

HEX	#37288A
RGB	rgb(55, 40, 138)
HSL	hsl(249, 55%, 35%)
HSV	hsv(249, 71%, 54%)
CMYK	cmyk(60.1%, 71%, 0%, 45.9%)
CIE-LAB	lab(24.21, 35.48, -52.29)
CIE-LCH	lch(24.21, 63.19, 304.16°)
OKLab	oklab(36.19% 0.0333 -0.1506)
OKLCH	oklch(36.19% 0.154 282.5)
XYZ	xyz(6.9204, 4.1643, 24.4790)
Luminance	0.0416 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37288A #7B8A28

analogous

#284A8A #37288A #68288A

triadic

#37288A #8A3728 #288A37

tetradic

#37288A #8A284A #7B8A28 #288A68

square

#37288A #8A284A #7B8A28 #288A68

split-complementary

#37288A #8A6828 #4A8A28

monochromatic

#110C2B #241A5B #37288A #4A36B9 #6E5DD0

Accessibility & contrast

On white

11.46

#37288A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#37288A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37288A

11.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37288A	#FFFFFF	#000000	##FFFFFF
##37288A	1.00	11.46	1.83	11.46
#FFFFFF	11.46	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D8D

Deuteranopia (green-blind)

#003688

Tritanopia (blue-blind)

#034256

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #37288a;
/* rgb */ color: rgb(55, 40, 138);
/* oklch */ color: oklch(36.2% 0.154 282.5);

Tailwind

colors: {
  custom: {
    50: '#7863ad',
    500: '#37288a',
    950: '#000000',
  },
}

SCSS

$custom: #37288a;
$custom-light: #7863ad;
$custom-dark: #000000;

JSON

{
  "hex": "#37288a",
  "rgb": {
    "r": 55,
    "g": 40,
    "b": 138
  },
  "hsl": {
    "h": 249.184,
    "s": 55.056,
    "l": 34.902
  },
  "oklch": {
    "l": 0.36189,
    "c": 0.1542,
    "h": 282.5
  },
  "luminance": 0.04165
}

Semantic roles & 50–950 ramp

primary

#37288A

secondary

#A7B559

accent

#DE49C8

background

#F7F6FA

surface

#EEEBF4

border

#C9C6CE

text

#0A0510

muted

#7C7A7F

Preview Lab

Preview with #37288A

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

Preview Lab → · Contrast checker → · Palette generator →