#37398E#37398E

#37398E is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.5% C 0.138 H 277.0°. Best body text is #FFFFFF at 9.82:1 contrast (WCAG AA passes).

Color values

HEX	#37398E
RGB	rgb(55, 57, 142)
HSL	hsl(239, 44%, 39%)
HSV	hsv(239, 61%, 56%)
CMYK	cmyk(61.3%, 59.9%, 0%, 44.3%)
CIE-LAB	lab(28.62, 26.06, -47.57)
CIE-LCH	lch(28.62, 54.25, 298.72°)
OKLab	oklab(39.51% 0.0169 -0.1367)
OKLCH	oklch(39.51% 0.138 277)
XYZ	xyz(7.9196, 5.6909, 26.2671)
Luminance	0.0569 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37398E #8E8C37

analogous

#37648E #37398E #60378E

triadic

#37398E #8E3739 #398E37

tetradic

#37398E #8E3764 #8E8C37 #378E60

square

#37398E #8E3764 #8E8C37 #378E60

split-complementary

#37398E #8E6037 #648E37

monochromatic

#151636 #262762 #37398E #494CB9 #7678CA

Accessibility & contrast

On white

9.82

#37398E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#37398E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37398E

9.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37398E	#FFFFFF	#000000	##FFFFFF
##37398E	1.00	9.82	2.14	9.82
#FFFFFF	9.82	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004791

Deuteranopia (green-blind)

#00408C

Tritanopia (blue-blind)

#004D5D

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #37398e;
/* rgb */ color: rgb(55, 57, 142);
/* oklch */ color: oklch(39.5% 0.138 277.0);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#37398e",
  "rgb": {
    "r": 55,
    "g": 57,
    "b": 142
  },
  "hsl": {
    "h": 238.621,
    "s": 44.162,
    "l": 38.627
  },
  "oklch": {
    "l": 0.39512,
    "c": 0.13771,
    "h": 277
  },
  "luminance": 0.05691
}

Semantic roles & 50–950 ramp

primary

#37398E

secondary

#B3B16E

accent

#D154D4

background

#F7F6FA

surface

#EEECF5

border

#C9C7CF

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #37398E

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

Preview Lab → · Contrast checker → · Palette generator →