#373D64#373D64

#373D64 is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.3% C 0.067 H 276.0°. Best body text is #FFFFFF at 10.43:1 contrast (WCAG AA passes).

Color values

HEX	#373D64
RGB	rgb(55, 61, 100)
HSL	hsl(232, 29%, 30%)
HSV	hsv(232, 45%, 39%)
CMYK	cmyk(45%, 39%, 0%, 60.8%)
CIE-LAB	lab(26.93, 8.86, -23.80)
CIE-LCH	lch(26.93, 25.40, 290.41°)
OKLab	oklab(37.34% 0.007 -0.0669)
OKLCH	oklch(37.34% 0.067 276)
XYZ	xyz(5.5438, 5.0695, 12.7405)
Luminance	0.0507 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373D64 #645E37

analogous

#375364 #373D64 #473764

triadic

#373D64 #64373D #3D6437

tetradic

#373D64 #643753 #645E37 #376447

square

#373D64 #643753 #645E37 #376447

split-complementary

#373D64 #644737 #536437

monochromatic

#0C0D15 #21253D #373D64 #4D558B #6972AC

Accessibility & contrast

On white

10.43

#373D64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#373D64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373D64

10.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373D64	#FFFFFF	#000000	##FFFFFF
##373D64	1.00	10.43	2.01	10.43
#FFFFFF	10.43	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F4266

Deuteranopia (green-blind)

#2C3E63

Tritanopia (blue-blind)

#28454B

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #373d64;
/* rgb */ color: rgb(55, 61, 100);
/* oklch */ color: oklch(37.3% 0.067 276.0);

Tailwind

colors: {
  custom: {
    50: '#707290',
    500: '#373d64',
    950: '#000000',
  },
}

SCSS

$custom: #373d64;
$custom-light: #707290;
$custom-dark: #000000;

JSON

{
  "hex": "#373d64",
  "rgb": {
    "r": 55,
    "g": 61,
    "b": 100
  },
  "hsl": {
    "h": 232,
    "s": 29.032,
    "l": 30.392
  },
  "oklch": {
    "l": 0.37339,
    "c": 0.06727,
    "h": 276
  },
  "luminance": 0.0507
}

Semantic roles & 50–950 ramp

primary

#373D64

secondary

#948E62

accent

#B862C5

background

#F6F6F8

surface

#ECECF0

border

#C7C7CB

text

#08070C

muted

#7B7A7D

Preview Lab

Preview with #373D64

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

Preview Lab → · Contrast checker → · Palette generator →