#37589D#37589D

#37589D is a mid, moderate blue. Relative luminance 0.102; OKLCH L 47.1% C 0.118 H 263.3°. Best body text is #FFFFFF at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#37589D
RGB	rgb(55, 88, 157)
HSL	hsl(221, 48%, 42%)
HSV	hsv(221, 65%, 62%)
CMYK	cmyk(65%, 43.9%, 0%, 38.4%)
CIE-LAB	lab(38.24, 10.95, -41.20)
CIE-LCH	lch(38.24, 42.63, 284.89°)
OKLab	oklab(47.13% -0.0138 -0.1175)
OKLCH	oklch(47.13% 0.118 263.3)
XYZ	xyz(11.1490, 10.2250, 33.2778)
Luminance	0.1023 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37589D #9D7C37

analogous

#378B9D #37589D #49379D

triadic

#37589D #9D3758 #589D37

tetradic

#37589D #9D378B #9D7C37 #379D49

square

#37589D #9D378B #9D7C37 #379D49

split-complementary

#37589D #9D4937 #8B9D37

monochromatic

#172542 #273F70 #37589D #5074C2 #7D98D1

Accessibility & contrast

On white

6.90

#37589D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#37589D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37589D

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37589D	#FFFFFF	#000000	##FFFFFF
##37589D	1.00	6.90	3.05	6.90
#FFFFFF	6.90	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#385FA0

Deuteranopia (green-blind)

#28569C

Tritanopia (blue-blind)

#006873

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #37589d;
/* rgb */ color: rgb(55, 88, 157);
/* oklch */ color: oklch(47.1% 0.118 263.3);

Tailwind

colors: {
  custom: {
    50: '#7886ba',
    500: '#37589d',
    950: '#000000',
  },
}

SCSS

$custom: #37589d;
$custom-light: #7886ba;
$custom-dark: #000000;

JSON

{
  "hex": "#37589d",
  "rgb": {
    "r": 55,
    "g": 88,
    "b": 157
  },
  "hsl": {
    "h": 220.588,
    "s": 48.113,
    "l": 41.569
  },
  "oklch": {
    "l": 0.47125,
    "c": 0.11832,
    "h": 263.3
  },
  "luminance": 0.10226
}

Semantic roles & 50–950 ramp

primary

#37589D

secondary

#BBA475

accent

#AC50D8

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #37589D

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

Preview Lab → · Contrast checker → · Palette generator →