#37299B#37299B

#37299B is a dark, vivid blue. Relative luminance 0.048; OKLCH L 38.0% C 0.175 H 279.6°. Best body text is #FFFFFF at 10.75:1 contrast (WCAG AA passes).

Color values

HEX	#37299B
RGB	rgb(55, 41, 155)
HSL	hsl(247, 58%, 38%)
HSV	hsv(247, 74%, 61%)
CMYK	cmyk(64.5%, 73.5%, 0%, 39.2%)
CIE-LAB	lab(26.05, 40.42, -59.75)
CIE-LCH	lch(26.05, 72.14, 304.08°)
OKLab	oklab(38% 0.0292 -0.1724)
OKLCH	oklch(38% 0.175 279.6)
XYZ	xyz(8.2830, 4.7640, 31.4870)
Luminance	0.0476 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37299B #8D9B29

analogous

#29549B #37299B #70299B

triadic

#37299B #9B3729 #299B37

tetradic

#37299B #9B2954 #8D9B29 #299B70

square

#37299B #9B2954 #8D9B29 #299B70

split-complementary

#37299B #9B7029 #549B29

monochromatic

#150F3A #261C6B #37299B #4937CA #7567D7

Accessibility & contrast

On white

10.75

#37299B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#37299B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37299B

10.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37299B	#FFFFFF	#000000	##FFFFFF
##37299B	1.00	10.75	1.95	10.75
#FFFFFF	10.75	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00429E

Deuteranopia (green-blind)

#003999

Tritanopia (blue-blind)

#00495F

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #37299b;
/* rgb */ color: rgb(55, 41, 155);
/* oklch */ color: oklch(38.0% 0.175 279.6);

Tailwind

colors: {
  custom: {
    50: '#7b65ba',
    500: '#37299b',
    950: '#000000',
  },
}

SCSS

$custom: #37299b;
$custom-light: #7b65ba;
$custom-dark: #000000;

JSON

{
  "hex": "#37299b",
  "rgb": {
    "r": 55,
    "g": 41,
    "b": 155
  },
  "hsl": {
    "h": 247.368,
    "s": 58.163,
    "l": 38.431
  },
  "oklch": {
    "l": 0.38003,
    "c": 0.17488,
    "h": 279.6
  },
  "luminance": 0.04765
}

Semantic roles & 50–950 ramp

primary

#37299B

secondary

#B2BD63

accent

#E146CE

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #37299B

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

Preview Lab → · Contrast checker → · Palette generator →