#37488F#37488F

#37488F is a dark, moderate blue. Relative luminance 0.074; OKLCH L 42.6% C 0.119 H 270.5°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#37488F
RGB	rgb(55, 72, 143)
HSL	hsl(228, 44%, 39%)
HSV	hsv(228, 62%, 56%)
CMYK	cmyk(61.5%, 49.7%, 0%, 43.9%)
CIE-LAB	lab(32.77, 16.42, -41.49)
CIE-LCH	lch(32.77, 44.63, 291.59°)
OKLab	oklab(42.65% 0.0011 -0.1186)
OKLCH	oklch(42.65% 0.119 270.5)
XYZ	xyz(8.8492, 7.4294, 26.9490)
Luminance	0.0743 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37488F #8F7E37

analogous

#37748F #37488F #52378F

triadic

#37488F #8F3748 #488F37

tetradic

#37488F #8F3774 #8F7E37 #378F52

square

#37488F #8F3774 #8F7E37 #378F52

split-complementary

#37488F #8F5237 #748F37

monochromatic

#151B37 #263263 #37488F #4A5FB9 #7686CA

Accessibility & contrast

On white

8.45

#37488F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#37488F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37488F

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37488F	#FFFFFF	#000000	##FFFFFF
##37488F	1.00	8.45	2.49	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#245192

Deuteranopia (green-blind)

#14498E

Tritanopia (blue-blind)

#005864

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #37488f;
/* rgb */ color: rgb(55, 72, 143);
/* oklch */ color: oklch(42.6% 0.119 270.5);

Tailwind

colors: {
  custom: {
    50: '#767ab0',
    500: '#37488f',
    950: '#000000',
  },
}

SCSS

$custom: #37488f;
$custom-light: #767ab0;
$custom-dark: #000000;

JSON

{
  "hex": "#37488f",
  "rgb": {
    "r": 55,
    "g": 72,
    "b": 143
  },
  "hsl": {
    "h": 228.409,
    "s": 44.444,
    "l": 38.824
  },
  "oklch": {
    "l": 0.42647,
    "c": 0.11862,
    "h": 270.5
  },
  "luminance": 0.0743
}

Semantic roles & 50–950 ramp

primary

#37488F

secondary

#B3A66F

accent

#BB54D4

background

#F7F7FA

surface

#EEEDF5

border

#C9C8CF

text

#090910

muted

#7B7B7F

Preview Lab

Preview with #37488F

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

Preview Lab → · Contrast checker → · Palette generator →