#37559F#37559F

#37559F is a mid, vivid blue. Relative luminance 0.098; OKLCH L 46.6% C 0.125 H 265.3°. Best body text is #FFFFFF at 7.09:1 contrast (WCAG AA passes).

Color values

HEX	#37559F
RGB	rgb(55, 85, 159)
HSL	hsl(223, 49%, 42%)
HSV	hsv(223, 65%, 62%)
CMYK	cmyk(65.4%, 46.5%, 0%, 37.6%)
CIE-LAB	lab(37.50, 13.64, -43.58)
CIE-LCH	lch(37.50, 45.66, 287.38°)
OKLab	oklab(46.6% -0.0103 -0.1246)
OKLCH	oklch(46.6% 0.125 265.3)
XYZ	xyz(11.0799, 9.8114, 34.1041)
Luminance	0.0981 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37559F #9F8137

analogous

#37899F #37559F #4D379F

triadic

#37559F #9F3755 #559F37

tetradic

#37559F #9F3789 #9F8137 #379F4D

square

#37559F #9F3789 #9F8137 #379F4D

split-complementary

#37559F #9F4D37 #899F37

monochromatic

#182444 #273D72 #37559F #5171C3 #7E96D2

Accessibility & contrast

On white

7.09

#37559F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#37559F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37559F

7.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37559F	#FFFFFF	#000000	##FFFFFF
##37559F	1.00	7.09	2.96	7.09
#FFFFFF	7.09	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#315DA2

Deuteranopia (green-blind)

#1E549D

Tritanopia (blue-blind)

#006672

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #37559f;
/* rgb */ color: rgb(55, 85, 159);
/* oklch */ color: oklch(46.6% 0.125 265.3);

Tailwind

colors: {
  custom: {
    50: '#7984bc',
    500: '#37559f',
    950: '#000000',
  },
}

SCSS

$custom: #37559f;
$custom-light: #7984bc;
$custom-dark: #000000;

JSON

{
  "hex": "#37559f",
  "rgb": {
    "r": 55,
    "g": 85,
    "b": 159
  },
  "hsl": {
    "h": 222.692,
    "s": 48.598,
    "l": 41.961
  },
  "oklch": {
    "l": 0.46595,
    "c": 0.12499,
    "h": 265.3
  },
  "luminance": 0.09812
}

Semantic roles & 50–950 ramp

primary

#37559F

secondary

#BCA876

accent

#B150D8

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #37559F

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

Preview Lab → · Contrast checker → · Palette generator →