#37539F#37539F

#37539F is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.2% C 0.128 H 266.3°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#37539F
RGB	rgb(55, 83, 159)
HSL	hsl(224, 49%, 42%)
HSV	hsv(224, 65%, 62%)
CMYK	cmyk(65.4%, 47.8%, 0%, 37.6%)
CIE-LAB	lab(36.93, 14.95, -44.49)
CIE-LCH	lch(36.93, 46.94, 288.57°)
OKLab	oklab(46.16% -0.0082 -0.1273)
OKLCH	oklch(46.16% 0.128 266.3)
XYZ	xyz(10.9247, 9.5009, 34.0523)
Luminance	0.0950 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37539F #9F8337

analogous

#37879F #37539F #4F379F

triadic

#37539F #9F3753 #539F37

tetradic

#37539F #9F3787 #9F8337 #379F4F

square

#37539F #9F3787 #9F8337 #379F4F

split-complementary

#37539F #9F4F37 #879F37

monochromatic

#182444 #273B72 #37539F #516FC3 #7E95D2

Accessibility & contrast

On white

7.24

#37539F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#37539F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37539F

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37539F	#FFFFFF	#000000	##FFFFFF
##37539F	1.00	7.24	2.90	7.24
#FFFFFF	7.24	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D5CA2

Deuteranopia (green-blind)

#19529D

Tritanopia (blue-blind)

#006471

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #37539f;
/* rgb */ color: rgb(55, 83, 159);
/* oklch */ color: oklch(46.2% 0.128 266.3);

Tailwind

colors: {
  custom: {
    50: '#7982bc',
    500: '#37539f',
    950: '#000000',
  },
}

SCSS

$custom: #37539f;
$custom-light: #7982bc;
$custom-dark: #000000;

JSON

{
  "hex": "#37539f",
  "rgb": {
    "r": 55,
    "g": 83,
    "b": 159
  },
  "hsl": {
    "h": 223.846,
    "s": 48.598,
    "l": 41.961
  },
  "oklch": {
    "l": 0.46159,
    "c": 0.12756,
    "h": 266.3
  },
  "luminance": 0.09502
}

Semantic roles & 50–950 ramp

primary

#37539F

secondary

#BCA976

accent

#B350D8

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #37539F

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

Preview Lab → · Contrast checker → · Palette generator →