#374F64#374F64

#374F64 is a dark, muted cyan. Relative luminance 0.073; OKLCH L 41.7% C 0.046 H 245.6°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#374F64
RGB	rgb(55, 79, 100)
HSL	hsl(208, 29%, 30%)
HSV	hsv(208, 45%, 39%)
CMYK	cmyk(45%, 21%, 0%, 60.8%)
CIE-LAB	lab(32.53, -2.95, -15.10)
CIE-LCH	lch(32.53, 15.38, 258.95°)
OKLab	oklab(41.71% -0.019 -0.0418)
OKLCH	oklch(41.71% 0.046 245.6)
XYZ	xyz(6.6710, 7.3239, 13.1163)
Luminance	0.0732 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374F64 #644C37

analogous

#376462 #374F64 #373864

triadic

#374F64 #64374F #4F6437

tetradic

#374F64 #623764 #644C37 #386437

square

#374F64 #623764 #644C37 #386437

split-complementary

#374F64 #643738 #646237

monochromatic

#0C1115 #21303D #374F64 #4D6E8B #698DAC

Accessibility & contrast

On white

8.52

#374F64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#374F64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374F64

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374F64	#FFFFFF	#000000	##FFFFFF
##374F64	1.00	8.52	2.46	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#464F65

Deuteranopia (green-blind)

#414A64

Tritanopia (blue-blind)

#265456

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #374f64;
/* rgb */ color: rgb(55, 79, 100);
/* oklch */ color: oklch(41.7% 0.046 245.6);

Tailwind

colors: {
  custom: {
    50: '#708090',
    500: '#374f64',
    950: '#000000',
  },
}

SCSS

$custom: #374f64;
$custom-light: #708090;
$custom-dark: #000000;

JSON

{
  "hex": "#374f64",
  "rgb": {
    "r": 55,
    "g": 79,
    "b": 100
  },
  "hsl": {
    "h": 208,
    "s": 29.032,
    "l": 30.392
  },
  "oklch": {
    "l": 0.41705,
    "c": 0.04595,
    "h": 245.6
  },
  "luminance": 0.07324
}

Semantic roles & 50–950 ramp

primary

#374F64

secondary

#947A62

accent

#9162C5

background

#F6F7F8

surface

#ECEEF0

border

#C7C9CB

text

#070A0C

muted

#7A7C7D

Preview Lab

Preview with #374F64

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

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