#37518C#37518C

#37518C is a dark, moderate blue. Relative luminance 0.086; OKLCH L 44.4% C 0.102 H 264.7°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#37518C
RGB	rgb(55, 81, 140)
HSL	hsl(222, 44%, 38%)
HSV	hsv(222, 61%, 55%)
CMYK	cmyk(60.7%, 42.1%, 0%, 45.1%)
CIE-LAB	lab(35.18, 9.37, -35.80)
CIE-LCH	lch(35.18, 37.00, 284.68°)
OKLab	oklab(44.44% -0.0095 -0.1018)
OKLCH	oklch(44.44% 0.102 264.7)
XYZ	xyz(9.2500, 8.5898, 25.9764)
Luminance	0.0859 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37518C #8C7237

analogous

#377B8C #37518C #47378C

triadic

#37518C #8C3751 #518C37

tetradic

#37518C #8C377B #8C7237 #378C47

square

#37518C #8C377B #8C7237 #378C47

split-complementary

#37518C #8C4737 #7B8C37

monochromatic

#141E34 #263860 #37518C #496BB7 #758EC9

Accessibility & contrast

On white

7.73

#37518C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#37518C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37518C

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37518C	#FFFFFF	#000000	##FFFFFF
##37518C	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#37578E

Deuteranopia (green-blind)

#2C4F8B

Tritanopia (blue-blind)

#005E67

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #37518c;
/* rgb */ color: rgb(55, 81, 140);
/* oklch */ color: oklch(44.4% 0.102 264.7);

Tailwind

colors: {
  custom: {
    50: '#7581ae',
    500: '#37518c',
    950: '#000000',
  },
}

SCSS

$custom: #37518c;
$custom-light: #7581ae;
$custom-dark: #000000;

JSON

{
  "hex": "#37518c",
  "rgb": {
    "r": 55,
    "g": 81,
    "b": 140
  },
  "hsl": {
    "h": 221.647,
    "s": 43.59,
    "l": 38.235
  },
  "oklch": {
    "l": 0.44437,
    "c": 0.10221,
    "h": 264.7
  },
  "luminance": 0.08591
}

Semantic roles & 50–950 ramp

primary

#37518C

secondary

#B19D6D

accent

#AD54D3

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#090A10

muted

#7B7C7F

Preview Lab

Preview with #37518C

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

Preview Lab → · Contrast checker → · Palette generator →