#37418B#37418B

#37418B is a dark, vivid blue. Relative luminance 0.065; OKLCH L 40.9% C 0.122 H 273.9°. Best body text is #FFFFFF at 9.16:1 contrast (WCAG AA passes).

Color values

HEX	#37418B
RGB	rgb(55, 65, 139)
HSL	hsl(233, 43%, 38%)
HSV	hsv(233, 60%, 55%)
CMYK	cmyk(60.4%, 53.2%, 0%, 45.5%)
CIE-LAB	lab(30.54, 19.67, -42.62)
CIE-LCH	lch(30.54, 46.94, 294.77°)
OKLab	oklab(40.87% 0.0084 -0.122)
OKLCH	oklch(40.87% 0.122 273.9)
XYZ	xyz(8.1245, 6.4563, 25.2391)
Luminance	0.0646 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37418B #8B8137

analogous

#376B8B #37418B #57378B

triadic

#37418B #8B3741 #418B37

tetradic

#37418B #8B376B #8B8137 #378B57

square

#37418B #8B376B #8B8137 #378B57

split-complementary

#37418B #8B5737 #6B8B37

monochromatic

#141833 #262C5F #37418B #4856B7 #747EC8

Accessibility & contrast

On white

9.16

#37418B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#37418B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37418B

9.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37418B	#FFFFFF	#000000	##FFFFFF
##37418B	1.00	9.16	2.29	9.16
#FFFFFF	9.16	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#174C8E

Deuteranopia (green-blind)

#024489

Tritanopia (blue-blind)

#00525F

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #37418b;
/* rgb */ color: rgb(55, 65, 139);
/* oklch */ color: oklch(40.9% 0.122 273.9);

Tailwind

colors: {
  custom: {
    50: '#7675ad',
    500: '#37418b',
    950: '#000000',
  },
}

SCSS

$custom: #37418b;
$custom-light: #7675ad;
$custom-dark: #000000;

JSON

{
  "hex": "#37418b",
  "rgb": {
    "r": 55,
    "g": 65,
    "b": 139
  },
  "hsl": {
    "h": 232.857,
    "s": 43.299,
    "l": 38.039
  },
  "oklch": {
    "l": 0.40873,
    "c": 0.12231,
    "h": 273.9
  },
  "luminance": 0.06457
}

Semantic roles & 50–950 ramp

primary

#37418B

secondary

#B1A96D

accent

#C455D3

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #37418B

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

Preview Lab → · Contrast checker → · Palette generator →