#37478F#37478F

#37478F is a dark, moderate blue. Relative luminance 0.073; OKLCH L 42.4% C 0.120 H 271.1°. Best body text is #FFFFFF at 8.54:1 contrast (WCAG AA passes).

Color values

HEX	#37478F
RGB	rgb(55, 71, 143)
HSL	hsl(229, 44%, 39%)
HSV	hsv(229, 62%, 56%)
CMYK	cmyk(61.5%, 50.3%, 0%, 43.9%)
CIE-LAB	lab(32.48, 17.09, -41.95)
CIE-LCH	lch(32.48, 45.29, 292.17°)
OKLab	oklab(42.43% 0.0022 -0.12)
OKLCH	oklch(42.43% 0.12 271.1)
XYZ	xyz(8.7851, 7.3012, 26.9276)
Luminance	0.0730 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37478F #8F7F37

analogous

#37738F #37478F #53378F

triadic

#37478F #8F3747 #478F37

tetradic

#37478F #8F3773 #8F7F37 #378F53

square

#37478F #8F3773 #8F7F37 #378F53

split-complementary

#37478F #8F5337 #738F37

monochromatic

#151B37 #263163 #37478F #4A5EB9 #7685CA

Accessibility & contrast

On white

8.54

#37478F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#37478F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37478F

8.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37478F	#FFFFFF	#000000	##FFFFFF
##37478F	1.00	8.54	2.46	8.54
#FFFFFF	8.54	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#225092

Deuteranopia (green-blind)

#11498D

Tritanopia (blue-blind)

#005764

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #37478f;
/* rgb */ color: rgb(55, 71, 143);
/* oklch */ color: oklch(42.4% 0.120 271.1);

Tailwind

colors: {
  custom: {
    50: '#7679b0',
    500: '#37478f',
    950: '#000000',
  },
}

SCSS

$custom: #37478f;
$custom-light: #7679b0;
$custom-dark: #000000;

JSON

{
  "hex": "#37478f",
  "rgb": {
    "r": 55,
    "g": 71,
    "b": 143
  },
  "hsl": {
    "h": 229.091,
    "s": 44.444,
    "l": 38.824
  },
  "oklch": {
    "l": 0.42433,
    "c": 0.11998,
    "h": 271.1
  },
  "luminance": 0.07302
}

Semantic roles & 50–950 ramp

primary

#37478F

secondary

#B3A76F

accent

#BD54D4

background

#F7F7FA

surface

#EEEDF5

border

#C9C8CF

text

#090910

muted

#7B7B7F

Preview Lab

Preview with #37478F

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

Preview Lab → · Contrast checker → · Palette generator →