#37518F#37518F

#37518F is a dark, moderate blue. Relative luminance 0.087; OKLCH L 44.6% C 0.107 H 265.2°. Best body text is #FFFFFF at 7.68:1 contrast (WCAG AA passes).

Color values

HEX	#37518F
RGB	rgb(55, 81, 143)
HSL	hsl(222, 44%, 39%)
HSV	hsv(222, 62%, 56%)
CMYK	cmyk(61.5%, 43.4%, 0%, 43.9%)
CIE-LAB	lab(35.36, 10.45, -37.34)
CIE-LCH	lch(35.36, 38.78, 285.64°)
OKLab	oklab(44.63% -0.0089 -0.1063)
OKLCH	oklch(44.63% 0.107 265.2)
XYZ	xyz(9.4742, 8.6795, 27.1573)
Luminance	0.0868 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37518F #8F7537

analogous

#377D8F #37518F #49378F

triadic

#37518F #8F3751 #518F37

tetradic

#37518F #8F377D #8F7537 #378F49

square

#37518F #8F377D #8F7537 #378F49

split-complementary

#37518F #8F4937 #7D8F37

monochromatic

#151F37 #263863 #37518F #4A6BB9 #768FCA

Accessibility & contrast

On white

7.68

#37518F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#37518F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37518F

7.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37518F	#FFFFFF	#000000	##FFFFFF
##37518F	1.00	7.68	2.74	7.68
#FFFFFF	7.68	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#355791

Deuteranopia (green-blind)

#294F8E

Tritanopia (blue-blind)

#005F69

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #37518f;
/* rgb */ color: rgb(55, 81, 143);
/* oklch */ color: oklch(44.6% 0.107 265.2);

Tailwind

colors: {
  custom: {
    50: '#7681b0',
    500: '#37518f',
    950: '#000000',
  },
}

SCSS

$custom: #37518f;
$custom-light: #7681b0;
$custom-dark: #000000;

JSON

{
  "hex": "#37518f",
  "rgb": {
    "r": 55,
    "g": 81,
    "b": 143
  },
  "hsl": {
    "h": 222.273,
    "s": 44.444,
    "l": 38.824
  },
  "oklch": {
    "l": 0.44632,
    "c": 0.10668,
    "h": 265.2
  },
  "luminance": 0.0868
}

Semantic roles & 50–950 ramp

primary

#37518F

secondary

#B39F6F

accent

#AE54D4

background

#F7F7FA

surface

#EDEEF5

border

#C8C9CF

text

#090A10

muted

#7B7C7F

Preview Lab

Preview with #37518F

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

Preview Lab → · Contrast checker → · Palette generator →