#37488D#37488D

#37488D is a dark, moderate blue. Relative luminance 0.074; OKLCH L 42.5% C 0.116 H 270.4°. Best body text is #FFFFFF at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#37488D
RGB	rgb(55, 72, 141)
HSL	hsl(228, 44%, 38%)
HSV	hsv(228, 61%, 55%)
CMYK	cmyk(61%, 48.9%, 0%, 44.7%)
CIE-LAB	lab(32.63, 15.70, -40.48)
CIE-LCH	lch(32.63, 43.42, 291.20°)
OKLab	oklab(42.51% 0.0009 -0.1156)
OKLCH	oklch(42.51% 0.116 270.4)
XYZ	xyz(8.6990, 7.3693, 26.1581)
Luminance	0.0737 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37488D #8D7C37

analogous

#37738D #37488D #51378D

triadic

#37488D #8D3748 #488D37

tetradic

#37488D #8D3773 #8D7C37 #378D51

square

#37488D #8D3773 #8D7C37 #378D51

split-complementary

#37488D #8D5137 #738D37

monochromatic

#151B35 #263261 #37488D #495FB8 #7586C9

Accessibility & contrast

On white

8.49

#37488D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#37488D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37488D

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37488D	#FFFFFF	#000000	##FFFFFF
##37488D	1.00	8.49	2.47	8.49
#FFFFFF	8.49	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#265190

Deuteranopia (green-blind)

#18498C

Tritanopia (blue-blind)

#005863

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #37488d;
/* rgb */ color: rgb(55, 72, 141);
/* oklch */ color: oklch(42.5% 0.116 270.4);

Tailwind

colors: {
  custom: {
    50: '#767aaf',
    500: '#37488d',
    950: '#000000',
  },
}

SCSS

$custom: #37488d;
$custom-light: #767aaf;
$custom-dark: #000000;

JSON

{
  "hex": "#37488d",
  "rgb": {
    "r": 55,
    "g": 72,
    "b": 141
  },
  "hsl": {
    "h": 228.14,
    "s": 43.878,
    "l": 38.431
  },
  "oklch": {
    "l": 0.42505,
    "c": 0.11563,
    "h": 270.4
  },
  "luminance": 0.0737
}

Semantic roles & 50–950 ramp

primary

#37488D

secondary

#B2A56E

accent

#BA54D4

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090910

muted

#7B7B7F

Preview Lab

Preview with #37488D

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

Preview Lab → · Contrast checker → · Palette generator →