#37398F#37398F

#37398F is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.6% C 0.139 H 277.0°. Best body text is #FFFFFF at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#37398F
RGB	rgb(55, 57, 143)
HSL	hsl(239, 44%, 39%)
HSV	hsv(239, 62%, 56%)
CMYK	cmyk(61.5%, 60.1%, 0%, 43.9%)
CIE-LAB	lab(28.70, 26.42, -48.06)
CIE-LCH	lch(28.70, 54.84, 298.79°)
OKLab	oklab(39.6% 0.0169 -0.1381)
OKLCH	oklch(39.6% 0.139 277)
XYZ	xyz(7.9950, 5.7210, 26.6642)
Luminance	0.0572 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37398F #8F8D37

analogous

#37658F #37398F #61378F

triadic

#37398F #8F3739 #398F37

tetradic

#37398F #8F3765 #8F8D37 #378F61

square

#37398F #8F3765 #8F8D37 #378F61

split-complementary

#37398F #8F6137 #658F37

monochromatic

#151637 #262763 #37398F #4A4CB9 #7678CA

Accessibility & contrast

On white

9.79

#37398F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#37398F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37398F

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37398F	#FFFFFF	#000000	##FFFFFF
##37398F	1.00	9.79	2.14	9.79
#FFFFFF	9.79	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004792

Deuteranopia (green-blind)

#00408D

Tritanopia (blue-blind)

#004E5E

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #37398f;
/* rgb */ color: rgb(55, 57, 143);
/* oklch */ color: oklch(39.6% 0.139 277.0);

Tailwind

colors: {
  custom: {
    50: '#776fb0',
    500: '#37398f',
    950: '#000000',
  },
}

SCSS

$custom: #37398f;
$custom-light: #776fb0;
$custom-dark: #000000;

JSON

{
  "hex": "#37398f",
  "rgb": {
    "r": 55,
    "g": 57,
    "b": 143
  },
  "hsl": {
    "h": 238.636,
    "s": 44.444,
    "l": 38.824
  },
  "oklch": {
    "l": 0.39595,
    "c": 0.13914,
    "h": 277
  },
  "luminance": 0.05722
}

Semantic roles & 50–950 ramp

primary

#37398F

secondary

#B3B26F

accent

#D154D4

background

#F7F6FA

surface

#EEECF5

border

#C9C7CF

text

#090711

muted

#7B7A80

Preview Lab

Preview with #37398F

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

Preview Lab → · Contrast checker → · Palette generator →