#37288F#37288F

#37288F is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.7% C 0.161 H 281.6°. Best body text is #FFFFFF at 11.27:1 contrast (WCAG AA passes).

Color values

HEX	#37288F
RGB	rgb(55, 40, 143)
HSL	hsl(249, 56%, 36%)
HSV	hsv(249, 72%, 56%)
CMYK	cmyk(61.5%, 72%, 0%, 43.9%)
CIE-LAB	lab(24.68, 37.11, -54.62)
CIE-LCH	lch(24.68, 66.03, 304.19°)
OKLab	oklab(36.67% 0.0323 -0.1574)
OKLCH	oklch(36.67% 0.161 281.6)
XYZ	xyz(7.2907, 4.3125, 26.4295)
Luminance	0.0431 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37288F #808F28

analogous

#284C8F #37288F #6A288F

triadic

#37288F #8F3728 #288F37

tetradic

#37288F #8F284C #808F28 #288F6A

square

#37288F #8F284C #808F28 #288F6A

split-complementary

#37288F #8F6A28 #4C8F28

monochromatic

#120D2F #251B5F #37288F #4935BF #705FD2

Accessibility & contrast

On white

11.27

#37288F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#37288F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37288F

11.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37288F	#FFFFFF	#000000	##FFFFFF
##37288F	1.00	11.27	1.86	11.27
#FFFFFF	11.27	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E92

Deuteranopia (green-blind)

#00378D

Tritanopia (blue-blind)

#004458

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #37288f;
/* rgb */ color: rgb(55, 40, 143);
/* oklch */ color: oklch(36.7% 0.161 281.6);

Tailwind

colors: {
  custom: {
    50: '#7964b1',
    500: '#37288f',
    950: '#000000',
  },
}

SCSS

$custom: #37288f;
$custom-light: #7964b1;
$custom-dark: #000000;

JSON

{
  "hex": "#37288f",
  "rgb": {
    "r": 55,
    "g": 40,
    "b": 143
  },
  "hsl": {
    "h": 248.738,
    "s": 56.284,
    "l": 35.882
  },
  "oklch": {
    "l": 0.36671,
    "c": 0.16071,
    "h": 281.6
  },
  "luminance": 0.04313
}

Semantic roles & 50–950 ramp

primary

#37288F

secondary

#AAB85B

accent

#E048CA

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0511

muted

#7C7A80

Preview Lab

Preview with #37288F

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

Preview Lab → · Contrast checker → · Palette generator →