#374F55#374F55

#374F55 is a dark, muted cyan. Relative luminance 0.071; OKLCH L 41.0% C 0.031 H 214.9°. Best body text is #FFFFFF at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#374F55
RGB	rgb(55, 79, 85)
HSL	hsl(192, 21%, 27%)
HSV	hsv(192, 35%, 33%)
CMYK	cmyk(35.3%, 7.1%, 0%, 66.7%)
CIE-LAB	lab(31.94, -7.44, -6.48)
CIE-LCH	lch(31.94, 9.87, 221.02°)
OKLab	oklab(41.04% -0.0254 -0.0177)
OKLCH	oklch(41.04% 0.031 214.9)
XYZ	xyz(6.0107, 7.0597, 9.6385)
Luminance	0.0706 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374F55 #553D37

analogous

#37554C #374F55 #374055

triadic

#374F55 #55374F #4F5537

tetradic

#374F55 #4C3755 #553D37 #405537

square

#374F55 #4C3755 #553D37 #405537

split-complementary

#374F55 #553740 #554C37

monochromatic

#0C1113 #1F2C30 #374F55 #4F727A #69939E

Accessibility & contrast

On white

8.71

#374F55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#374F55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374F55

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374F55	#FFFFFF	#000000	##FFFFFF
##374F55	1.00	8.71	2.41	8.71
#FFFFFF	8.71	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B4D55

Deuteranopia (green-blind)

#464A55

Tritanopia (blue-blind)

#2D5151

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #374f55;
/* rgb */ color: rgb(55, 79, 85);
/* oklch */ color: oklch(41.0% 0.031 214.9);

Tailwind

colors: {
  custom: {
    50: '#6f8084',
    500: '#374f55',
    950: '#000000',
  },
}

SCSS

$custom: #374f55;
$custom-light: #6f8084;
$custom-dark: #000000;

JSON

{
  "hex": "#374f55",
  "rgb": {
    "r": 55,
    "g": 79,
    "b": 85
  },
  "hsl": {
    "h": 192,
    "s": 21.429,
    "l": 27.451
  },
  "oklch": {
    "l": 0.41042,
    "c": 0.03093,
    "h": 214.9
  },
  "luminance": 0.0706
}

Semantic roles & 50–950 ramp

primary

#374F55

secondary

#856963

accent

#7B6ABE

background

#F6F7F8

surface

#ECEEEF

border

#C7C9CA

text

#070A0B

muted

#7A7C7C

Preview Lab

Preview with #374F55

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

Preview Lab → · Contrast checker → · Palette generator →