#37378E#37378E

#37378E is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.1% C 0.140 H 277.7°. Best body text is #FFFFFF at 10.00:1 contrast (WCAG AA passes).

Color values

HEX	#37378E
RGB	rgb(55, 55, 142)
HSL	hsl(240, 44%, 39%)
HSV	hsv(240, 61%, 56%)
CMYK	cmyk(61.3%, 61.3%, 0%, 44.3%)
CIE-LAB	lab(28.11, 27.38, -48.41)
CIE-LCH	lch(28.11, 55.61, 299.49°)
OKLab	oklab(39.13% 0.0189 -0.1391)
OKLCH	oklch(39.13% 0.14 277.7)
XYZ	xyz(7.8227, 5.4970, 26.2347)
Luminance	0.0550 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37378E #8E8E37

analogous

#37628E #37378E #62378E

triadic

#37378E #8E3737 #378E37

tetradic

#37378E #8E3762 #8E8E37 #378E62

square

#37378E #8E3762 #8E8E37 #378E62

split-complementary

#37378E #8E6237 #628E37

monochromatic

#151536 #262662 #37378E #4949B9 #7676CA

Accessibility & contrast

On white

10.00

#37378E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#37378E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37378E

10.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37378E	#FFFFFF	#000000	##FFFFFF
##37378E	1.00	10.00	2.10	10.00
#FFFFFF	10.00	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004691

Deuteranopia (green-blind)

#003F8C

Tritanopia (blue-blind)

#004C5D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #37378e;
/* rgb */ color: rgb(55, 55, 142);
/* oklch */ color: oklch(39.1% 0.140 277.7);

Tailwind

colors: {
  custom: {
    50: '#776eb0',
    500: '#37378e',
    950: '#000000',
  },
}

SCSS

$custom: #37378e;
$custom-light: #776eb0;
$custom-dark: #000000;

JSON

{
  "hex": "#37378e",
  "rgb": {
    "r": 55,
    "g": 55,
    "b": 142
  },
  "hsl": {
    "h": 240,
    "s": 44.162,
    "l": 38.627
  },
  "oklch": {
    "l": 0.39133,
    "c": 0.1404,
    "h": 277.7
  },
  "luminance": 0.05498
}

Semantic roles & 50–950 ramp

primary

#37378E

secondary

#B3B36E

accent

#D454D4

background

#F7F6FA

surface

#EEEBF5

border

#C9C6CF

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #37378E

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

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