#37308B#37308B

#37308B is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.6% C 0.145 H 280.2°. Best body text is #FFFFFF at 10.73:1 contrast (WCAG AA passes).

Color values

HEX	#37308B
RGB	rgb(55, 48, 139)
HSL	hsl(245, 49%, 37%)
HSV	hsv(245, 65%, 55%)
CMYK	cmyk(60.4%, 65.5%, 0%, 45.5%)
CIE-LAB	lab(26.13, 30.87, -49.77)
CIE-LCH	lch(26.13, 58.57, 301.81°)
OKLab	oklab(37.6% 0.0258 -0.1432)
OKLCH	oklch(37.6% 0.146 280.2)
XYZ	xyz(7.2912, 4.7897, 24.9614)
Luminance	0.0479 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37308B #848B30

analogous

#30578B #37308B #65308B

triadic

#37308B #8B3730 #308B37

tetradic

#37308B #8B3057 #848B30 #308B65

square

#37308B #8B3057 #848B30 #308B65

split-complementary

#37308B #8B6530 #578B30

monochromatic

#131130 #25205E #37308B #4940B8 #716ACC

Accessibility & contrast

On white

10.73

#37308B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#37308B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37308B

10.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37308B	#FFFFFF	#000000	##FFFFFF
##37308B	1.00	10.73	1.96	10.73
#FFFFFF	10.73	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418E

Deuteranopia (green-blind)

#003A89

Tritanopia (blue-blind)

#004759

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #37308b;
/* rgb */ color: rgb(55, 48, 139);
/* oklch */ color: oklch(37.6% 0.145 280.2);

Tailwind

colors: {
  custom: {
    50: '#7769ae',
    500: '#37308b',
    950: '#000000',
  },
}

SCSS

$custom: #37308b;
$custom-light: #7769ae;
$custom-dark: #000000;

JSON

{
  "hex": "#37308b",
  "rgb": {
    "r": 55,
    "g": 48,
    "b": 139
  },
  "hsl": {
    "h": 244.615,
    "s": 48.663,
    "l": 36.667
  },
  "oklch": {
    "l": 0.37604,
    "c": 0.1455,
    "h": 280.2
  },
  "luminance": 0.0479
}

Semantic roles & 50–950 ramp

primary

#37308B

secondary

#ADB364

accent

#D850CE

background

#F7F6FA

surface

#EEEBF4

border

#C9C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #37308B

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

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