#373B60#373B60

#373B60 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.6% C 0.064 H 278.0°. Best body text is #FFFFFF at 10.73:1 contrast (WCAG AA passes).

Color values

HEX	#373B60
RGB	rgb(55, 59, 96)
HSL	hsl(234, 27%, 30%)
HSV	hsv(234, 43%, 38%)
CMYK	cmyk(42.7%, 38.5%, 0%, 62.4%)
CIE-LAB	lab(26.11, 8.91, -22.51)
CIE-LCH	lch(26.11, 24.20, 291.59°)
OKLab	oklab(36.64% 0.0089 -0.0631)
OKLCH	oklch(36.64% 0.064 278)
XYZ	xyz(5.2502, 4.7845, 11.7109)
Luminance	0.0478 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373B60 #605C37

analogous

#375060 #373B60 #483760

triadic

#373B60 #60373B #3B6037

tetradic

#373B60 #603750 #605C37 #376048

square

#373B60 #603750 #605C37 #376048

split-complementary

#373B60 #604837 #506037

monochromatic

#0B0C13 #212339 #373B60 #4D5387 #696FA9

Accessibility & contrast

On white

10.73

#373B60 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#373B60 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373B60

10.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373B60	#FFFFFF	#000000	##FFFFFF
##373B60	1.00	10.73	1.96	10.73
#FFFFFF	10.73	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3F61

Deuteranopia (green-blind)

#2C3C5F

Tritanopia (blue-blind)

#2B4249

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #373b60;
/* rgb */ color: rgb(55, 59, 96);
/* oklch */ color: oklch(36.6% 0.064 278.0);

Tailwind

colors: {
  custom: {
    50: '#70708d',
    500: '#373b60',
    950: '#000000',
  },
}

SCSS

$custom: #373b60;
$custom-light: #70708d;
$custom-dark: #000000;

JSON

{
  "hex": "#373b60",
  "rgb": {
    "r": 55,
    "g": 59,
    "b": 96
  },
  "hsl": {
    "h": 234.146,
    "s": 27.152,
    "l": 29.608
  },
  "oklch": {
    "l": 0.36636,
    "c": 0.06378,
    "h": 278
  },
  "luminance": 0.04785
}

Semantic roles & 50–950 ramp

primary

#373B60

secondary

#908C62

accent

#BA64C3

background

#F6F6F8

surface

#ECECF0

border

#C7C7CB

text

#07070C

muted

#7A7A7D

Preview Lab

Preview with #373B60

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

Preview Lab → · Contrast checker → · Palette generator →