#374B59#374B59

#374B59 is a dark, muted cyan. Relative luminance 0.066; OKLCH L 40.2% C 0.034 H 239.2°. Best body text is #FFFFFF at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#374B59
RGB	rgb(55, 75, 89)
HSL	hsl(205, 24%, 28%)
HSV	hsv(205, 38%, 35%)
CMYK	cmyk(38.2%, 15.7%, 0%, 65.1%)
CIE-LAB	lab(30.80, -3.80, -10.76)
CIE-LCH	lch(30.80, 11.41, 250.55°)
OKLab	oklab(40.18% -0.0176 -0.0296)
OKLCH	oklch(40.18% 0.034 239.2)
XYZ	xyz(5.8942, 6.5653, 10.4059)
Luminance	0.0657 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374B59 #594537

analogous

#375956 #374B59 #373A59

triadic

#374B59 #59374B #4B5937

tetradic

#374B59 #563759 #594537 #3A5937

square

#374B59 #563759 #594537 #3A5937

split-complementary

#374B59 #59373A #595637

monochromatic

#0C1013 #202B33 #374B59 #4E6B7F #688AA2

Accessibility & contrast

On white

9.08

#374B59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#374B59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374B59

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374B59	#FFFFFF	#000000	##FFFFFF
##374B59	1.00	9.08	2.31	9.08
#FFFFFF	9.08	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#454B5A

Deuteranopia (green-blind)

#404759

Tritanopia (blue-blind)

#2C4F4F

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #374b59;
/* rgb */ color: rgb(55, 75, 89);
/* oklch */ color: oklch(40.2% 0.034 239.2);

Tailwind

colors: {
  custom: {
    50: '#6f7d88',
    500: '#374b59',
    950: '#000000',
  },
}

SCSS

$custom: #374b59;
$custom-light: #6f7d88;
$custom-dark: #000000;

JSON

{
  "hex": "#374b59",
  "rgb": {
    "r": 55,
    "g": 75,
    "b": 89
  },
  "hsl": {
    "h": 204.706,
    "s": 23.611,
    "l": 28.235
  },
  "oklch": {
    "l": 0.40184,
    "c": 0.03443,
    "h": 239.2
  },
  "luminance": 0.06566
}

Semantic roles & 50–950 ramp

primary

#374B59

secondary

#897262

accent

#8C68C0

background

#F6F7F8

surface

#ECEEEF

border

#C7C9CA

text

#07090B

muted

#7A7B7C

Preview Lab

Preview with #374B59

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

Preview Lab → · Contrast checker → · Palette generator →