#374F6F#374F6F

#374F6F is a dark, moderate cyan. Relative luminance 0.076; OKLCH L 42.3% C 0.061 H 255.9°. Best body text is #FFFFFF at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#374F6F
RGB	rgb(55, 79, 111)
HSL	hsl(214, 34%, 33%)
HSV	hsv(214, 50%, 44%)
CMYK	cmyk(50.5%, 28.8%, 0%, 56.5%)
CIE-LAB	lab(33.03, 0.61, -21.25)
CIE-LCH	lch(33.03, 21.26, 271.65°)
OKLab	oklab(42.26% -0.015 -0.0594)
OKLCH	oklch(42.26% 0.061 255.9)
XYZ	xyz(7.2398, 7.5514, 16.1119)
Luminance	0.0755 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374F6F #6F5737

analogous

#376B6F #374F6F #3B376F

triadic

#374F6F #6F374F #4F6F37

tetradic

#374F6F #6F376B #6F5737 #376F3B

square

#374F6F #6F376B #6F5737 #376F3B

split-complementary

#374F6F #6F3B37 #6B6F37

monochromatic

#0E151D #233246 #374F6F #4B6C98 #6B8BB6

Accessibility & contrast

On white

8.37

#374F6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#374F6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374F6F

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374F6F	#FFFFFF	#000000	##FFFFFF
##374F6F	1.00	8.37	2.51	8.37
#FFFFFF	8.37	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#435170

Deuteranopia (green-blind)

#3C4B6E

Tritanopia (blue-blind)

#1F565A

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #374f6f;
/* rgb */ color: rgb(55, 79, 111);
/* oklch */ color: oklch(42.3% 0.061 255.9);

Tailwind

colors: {
  custom: {
    50: '#718098',
    500: '#374f6f',
    950: '#000000',
  },
}

SCSS

$custom: #374f6f;
$custom-light: #718098;
$custom-dark: #000000;

JSON

{
  "hex": "#374f6f",
  "rgb": {
    "r": 55,
    "g": 79,
    "b": 111
  },
  "hsl": {
    "h": 214.286,
    "s": 33.735,
    "l": 32.549
  },
  "oklch": {
    "l": 0.4226,
    "c": 0.0613,
    "h": 255.9
  },
  "luminance": 0.07552
}

Semantic roles & 50–950 ramp

primary

#374F6F

secondary

#9F8563

accent

#9C5ECA

background

#F7F7F9

surface

#EDEEF2

border

#C8C9CC

text

#080A0D

muted

#7B7C7E

Preview Lab

Preview with #374F6F

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

Preview Lab → · Contrast checker → · Palette generator →