#37299D#37299D

#37299D is a dark, vivid blue. Relative luminance 0.048; OKLCH L 38.2% C 0.177 H 279.3°. Best body text is #FFFFFF at 10.68:1 contrast (WCAG AA passes).

Color values

HEX	#37299D
RGB	rgb(55, 41, 157)
HSL	hsl(247, 59%, 39%)
HSV	hsv(247, 74%, 62%)
CMYK	cmyk(65%, 73.9%, 0%, 38.4%)
CIE-LAB	lab(26.25, 41.06, -60.65)
CIE-LCH	lch(26.25, 73.24, 304.10°)
OKLab	oklab(38.2% 0.0288 -0.175)
OKLCH	oklch(38.2% 0.177 279.3)
XYZ	xyz(8.4523, 4.8318, 32.3790)
Luminance	0.0483 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37299D #8F9D29

analogous

#29559D #37299D #71299D

triadic

#37299D #9D3729 #299D37

tetradic

#37299D #9D2955 #8F9D29 #299D71

square

#37299D #9D2955 #8F9D29 #299D71

split-complementary

#37299D #9D7129 #559D29

monochromatic

#15103C #261C6C #37299D #4A38CB #7669D8

Accessibility & contrast

On white

10.68

#37299D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#37299D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37299D

10.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37299D	#FFFFFF	#000000	##FFFFFF
##37299D	1.00	10.68	1.97	10.68
#FFFFFF	10.68	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042A0

Deuteranopia (green-blind)

#00399B

Tritanopia (blue-blind)

#004960

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #37299d;
/* rgb */ color: rgb(55, 41, 157);
/* oklch */ color: oklch(38.2% 0.177 279.3);

Tailwind

colors: {
  custom: {
    50: '#7b65bb',
    500: '#37299d',
    950: '#000000',
  },
}

SCSS

$custom: #37299d;
$custom-light: #7b65bb;
$custom-dark: #000000;

JSON

{
  "hex": "#37299d",
  "rgb": {
    "r": 55,
    "g": 41,
    "b": 157
  },
  "hsl": {
    "h": 247.241,
    "s": 58.586,
    "l": 38.824
  },
  "oklch": {
    "l": 0.38203,
    "c": 0.17739,
    "h": 279.3
  },
  "luminance": 0.04832
}

Semantic roles & 50–950 ramp

primary

#37299D

secondary

#B3BE64

accent

#E246CF

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #37299D

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

Preview Lab → · Contrast checker → · Palette generator →