#3F4E57#3F4E57

#3F4E57 is a dark, muted cyan. Relative luminance 0.072; OKLCH L 41.4% C 0.024 H 234.5°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#3F4E57
RGB	rgb(63, 78, 87)
HSL	hsl(203, 16%, 29%)
HSV	hsv(203, 28%, 34%)
CMYK	cmyk(27.6%, 10.3%, 0%, 65.9%)
CIE-LAB	lab(32.24, -3.54, -7.24)
CIE-LCH	lch(32.24, 8.06, 243.97°)
OKLab	oklab(41.45% -0.0141 -0.0197)
OKLCH	oklch(41.45% 0.024 234.5)
XYZ	xyz(6.4941, 7.1934, 10.0613)
Luminance	0.0719 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4E57 #57483F

analogous

#3F5754 #3F4E57 #3F4257

triadic

#3F4E57 #573F4E #4E573F

tetradic

#3F4E57 #543F57 #57483F #42573F

square

#3F4E57 #543F57 #57483F #42573F

split-complementary

#3F4E57 #573F42 #57543F

monochromatic

#0D1012 #252E34 #3F4E57 #596E7A #758D9B

Accessibility & contrast

On white

8.61

#3F4E57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#3F4E57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4E57

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4E57	#FFFFFF	#000000	##FFFFFF
##3F4E57	1.00	8.61	2.44	8.61
#FFFFFF	8.61	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A4D57

Deuteranopia (green-blind)

#464B57

Tritanopia (blue-blind)

#385051

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3f4e57;
/* rgb */ color: rgb(63, 78, 87);
/* oklch */ color: oklch(41.4% 0.024 234.5);

Tailwind

colors: {
  custom: {
    50: '#747f86',
    500: '#3f4e57',
    950: '#000000',
  },
}

SCSS

$custom: #3f4e57;
$custom-light: #747f86;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4e57",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 87
  },
  "hsl": {
    "h": 202.5,
    "s": 16,
    "l": 29.412
  },
  "oklch": {
    "l": 0.41448,
    "c": 0.02423,
    "h": 234.5
  },
  "luminance": 0.07194
}

Semantic roles & 50–950 ramp

primary

#3F4E57

secondary

#86766B

accent

#8B6FB9

background

#F7F7F8

surface

#EDEEEF

border

#C8C9CA

text

#080A0B

muted

#7B7C7C

Preview Lab

Preview with #3F4E57

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

Preview Lab → · Contrast checker → · Palette generator →