#3F554E#3F554E

#3F554E is a dark, muted teal. Relative luminance 0.081; OKLCH L 42.9% C 0.029 H 173.3°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).

Color values

HEX#3F554E
RGBrgb(63, 85, 78)
HSLhsl(161, 15%, 29%)
HSVhsv(161, 26%, 33%)
CMYKcmyk(25.9%, 0%, 8.2%, 66.7%)
CIE-LABlab(34.20, -10.10, 1.34)
CIE-LCHlch(34.20, 10.19, 172.42°)
OKLaboklab(42.9% -0.0292 0.0034)
OKLCHoklch(42.9% 0.029 173.3)
XYZxyz(6.6731, 8.1036, 8.4188)
Luminance0.0810 (WCAG relative)
Temperatureneutral
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F554E #553F46
analogous
#3F5543 #3F554E #3F5155
triadic
#3F554E #4E3F55 #554E3F
tetradic
#3F554E #433F55 #553F46 #51553F
square
#3F554E #433F55 #553F46 #51553F
split-complementary
#3F554E #553F51 #55433F
monochromatic
#0D1210 #25322E #3F554E #59786E #75998E

Accessibility & contrast

On white

8.01
#3F554E on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.62
#3F554E on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F554E
8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F554E#FFFFFF#000000##FFFFFF
##3F554E1.008.012.628.01
#FFFFFF8.011.0021.001.00
#0000002.6221.001.0021.00
##FFFFFF8.011.0021.001.00

Color blindness preview

Protanopia (red-blind)
#54524E
Deuteranopia (green-blind)
#4F4F4E
Tritanopia (blue-blind)
#3A5553
Achromatopsia (no color)
#505050

Design tokens & code

CSS
--color: #3f554e;
/* rgb */ color: rgb(63, 85, 78);
/* oklch */ color: oklch(42.9% 0.029 173.3);
Tailwind
colors: {
  custom: {
    50: '#74857f',
    500: '#3f554e',
    950: '#000000',
  },
}
SCSS
$custom: #3f554e;
$custom-light: #74857f;
$custom-dark: #000000;
JSON
{
  "hex": "#3f554e",
  "rgb": {
    "r": 63,
    "g": 85,
    "b": 78
  },
  "hsl": {
    "h": 160.909,
    "s": 14.865,
    "l": 29.02
  },
  "oklch": {
    "l": 0.42901,
    "c": 0.02938,
    "h": 173.3
  },
  "luminance": 0.08104
}

Semantic roles & 50–950 ramp

primary
#3F554E
secondary
#846B73
accent
#7087B8
background
#F7F8F7
surface
#EDEFEE
border
#C8CAC9
text
#080B0A
muted
#7B7C7C

Preview Lab

Preview with #3F554E

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

Preview Lab → · Contrast checker → · Palette generator →

#3F554E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva