#51666C#51666C

#51666C is a mid, muted cyan. Relative luminance 0.123; OKLCH L 49.5% C 0.027 H 217.0°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#51666C
RGB	rgb(81, 102, 108)
HSL	hsl(193, 14%, 37%)
HSV	hsv(193, 25%, 42%)
CMYK	cmyk(25%, 5.6%, 0%, 57.6%)
CIE-LAB	lab(41.74, -6.34, -5.97)
CIE-LCH	lch(41.74, 8.71, 223.29°)
OKLab	oklab(49.53% -0.0215 -0.0162)
OKLCH	oklch(49.53% 0.027 217)
XYZ	xyz(10.8507, 12.3344, 15.9935)
Luminance	0.1234 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51666C #6C5751

analogous

#516C65 #51666C #51596C

triadic

#51666C #6C5166 #666C51

tetradic

#51666C #65516C #6C5751 #596C51

square

#51666C #65516C #6C5751 #596C51

split-complementary

#51666C #6C5159 #6C6551

monochromatic

#1D2426 #374549 #51666C #6B878F #8EA4AA

Accessibility & contrast

On white

6.06

#51666C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#51666C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51666C

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51666C	#FFFFFF	#000000	##FFFFFF
##51666C	1.00	6.06	3.47	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#62646C

Deuteranopia (green-blind)

#5D616C

Tritanopia (blue-blind)

#496868

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #51666c;
/* rgb */ color: rgb(81, 102, 108);
/* oklch */ color: oklch(49.5% 0.027 217.0);

Tailwind

colors: {
  custom: {
    50: '#829196',
    500: '#51666c',
    950: '#000000',
  },
}

SCSS

$custom: #51666c;
$custom-light: #829196;
$custom-dark: #000000;

JSON

{
  "hex": "#51666c",
  "rgb": {
    "r": 81,
    "g": 102,
    "b": 108
  },
  "hsl": {
    "h": 193.333,
    "s": 14.286,
    "l": 37.059
  },
  "oklch": {
    "l": 0.49534,
    "c": 0.02695,
    "h": 217
  },
  "luminance": 0.12335
}

Semantic roles & 50–950 ramp

primary

#51666C

secondary

#988681

accent

#8071B7

background

#F8F8F9

surface

#EFF0F1

border

#CACBCB

text

#0A0C0D

muted

#7C7D7E

Preview Lab

Preview with #51666C

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

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