#37487D#37487D

#37487D is a dark, moderate blue. Relative luminance 0.069; OKLCH L 41.4% C 0.091 H 268.8°. Best body text is #FFFFFF at 8.80:1 contrast (WCAG AA passes).

Color values

HEX	#37487D
RGB	rgb(55, 72, 125)
HSL	hsl(225, 39%, 35%)
HSV	hsv(225, 56%, 49%)
CMYK	cmyk(56%, 42.4%, 0%, 51%)
CIE-LAB	lab(31.64, 10.00, -32.18)
CIE-LCH	lch(31.64, 33.70, 287.26°)
OKLab	oklab(41.42% -0.0019 -0.0913)
OKLCH	oklch(41.42% 0.091 268.8)
XYZ	xyz(7.5934, 6.9271, 20.3350)
Luminance	0.0693 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37487D #7D6C37

analogous

#376B7D #37487D #49377D

triadic

#37487D #7D3748 #487D37

tetradic

#37487D #7D376B #7D6C37 #377D49

square

#37487D #7D376B #7D6C37 #377D49

split-complementary

#37487D #7D4937 #6B7D37

monochromatic

#121728 #243052 #37487D #4A60A7 #6F82C0

Accessibility & contrast

On white

8.80

#37487D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#37487D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37487D

8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37487D	#FFFFFF	#000000	##FFFFFF
##37487D	1.00	8.80	2.39	8.80
#FFFFFF	8.80	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#324E7F

Deuteranopia (green-blind)

#2A487C

Tritanopia (blue-blind)

#13545C

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #37487d;
/* rgb */ color: rgb(55, 72, 125);
/* oklch */ color: oklch(41.4% 0.091 268.8);

Tailwind

colors: {
  custom: {
    50: '#737aa3',
    500: '#37487d',
    950: '#000000',
  },
}

SCSS

$custom: #37487d;
$custom-light: #737aa3;
$custom-dark: #000000;

JSON

{
  "hex": "#37487d",
  "rgb": {
    "r": 55,
    "g": 72,
    "b": 125
  },
  "hsl": {
    "h": 225.429,
    "s": 38.889,
    "l": 35.294
  },
  "oklch": {
    "l": 0.41424,
    "c": 0.0913,
    "h": 268.8
  },
  "luminance": 0.06928
}

Semantic roles & 50–950 ramp

primary

#37487D

secondary

#A89967

accent

#B259CF

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#08090F

muted

#7B7B7F

Preview Lab

Preview with #37487D

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

Preview Lab → · Contrast checker → · Palette generator →