#373E4E#373E4E

#373E4E is a dark, muted blue. Relative luminance 0.048; OKLCH L 36.4% C 0.029 H 266.4°. Best body text is #FFFFFF at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#373E4E
RGB	rgb(55, 62, 78)
HSL	hsl(222, 17%, 26%)
HSV	hsv(222, 29%, 31%)
CMYK	cmyk(29.5%, 20.5%, 0%, 69.4%)
CIE-LAB	lab(26.18, 1.36, -10.65)
CIE-LCH	lch(26.18, 10.74, 277.30°)
OKLab	oklab(36.4% -0.0018 -0.0292)
OKLCH	oklch(36.4% 0.029 266.4)
XYZ	xyz(4.6729, 4.8074, 7.8880)
Luminance	0.0481 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373E4E #4E4737

analogous

#37494E #373E4E #3B374E

triadic

#373E4E #4E373E #3E4E37

tetradic

#373E4E #4E3749 #4E4737 #374E3B

square

#373E4E #4E3749 #4E4737 #374E3B

split-complementary

#373E4E #4E3B37 #494E37

monochromatic

#0D0E12 #1E212A #373E4E #505B72 #6A7796

Accessibility & contrast

On white

10.71

#373E4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#373E4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373E4E

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373E4E	#FFFFFF	#000000	##FFFFFF
##373E4E	1.00	10.71	1.96	10.71
#FFFFFF	10.71	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#393F4F

Deuteranopia (green-blind)

#373D4E

Tritanopia (blue-blind)

#314143

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #373e4e;
/* rgb */ color: rgb(55, 62, 78);
/* oklch */ color: oklch(36.4% 0.029 266.4);

Tailwind

colors: {
  custom: {
    50: '#6e737f',
    500: '#373e4e',
    950: '#000000',
  },
}

SCSS

$custom: #373e4e;
$custom-light: #6e737f;
$custom-dark: #000000;

JSON

{
  "hex": "#373e4e",
  "rgb": {
    "r": 55,
    "g": 62,
    "b": 78
  },
  "hsl": {
    "h": 221.739,
    "s": 17.293,
    "l": 26.078
  },
  "oklch": {
    "l": 0.36404,
    "c": 0.02928,
    "h": 266.4
  },
  "luminance": 0.04808
}

Semantic roles & 50–950 ramp

primary

#373E4E

secondary

#7E7663

accent

#A36EBA

background

#F6F6F7

surface

#ECECEE

border

#C7C7C9

text

#07080A

muted

#7A7B7C

Preview Lab

Preview with #373E4E

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

Preview Lab → · Contrast checker → · Palette generator →