#51637A#51637A

#51637A is a mid, muted cyan. Relative luminance 0.121; OKLCH L 49.4% C 0.043 H 254.7°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#51637A
RGB	rgb(81, 99, 122)
HSL	hsl(214, 20%, 40%)
HSV	hsv(214, 34%, 48%)
CMYK	cmyk(33.6%, 18.9%, 0%, 52.2%)
CIE-LAB	lab(41.34, -0.81, -15.09)
CIE-LCH	lch(41.34, 15.12, 266.93°)
OKLab	oklab(49.38% -0.0113 -0.0415)
OKLCH	oklch(49.38% 0.043 254.7)
XYZ	xyz(11.3670, 12.0777, 20.1409)
Luminance	0.1208 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51637A #7A6851

analogous

#51777A #51637A #54517A

triadic

#51637A #7A5163 #637A51

tetradic

#51637A #7A5177 #7A6851 #517A54

square

#51637A #7A5177 #7A6851 #517A54

split-complementary

#51637A #7A5451 #777A51

monochromatic

#202730 #394555 #51637A #6B819D #90A0B5

Accessibility & contrast

On white

6.15

#51637A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#51637A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51637A

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51637A	#FFFFFF	#000000	##FFFFFF
##51637A	1.00	6.15	3.42	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B647B

Deuteranopia (green-blind)

#56607A

Tritanopia (blue-blind)

#45686B

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #51637a;
/* rgb */ color: rgb(81, 99, 122);
/* oklch */ color: oklch(49.4% 0.043 254.7);

Tailwind

colors: {
  custom: {
    50: '#838fa0',
    500: '#51637a',
    950: '#000000',
  },
}

SCSS

$custom: #51637a;
$custom-light: #838fa0;
$custom-dark: #000000;

JSON

{
  "hex": "#51637a",
  "rgb": {
    "r": 81,
    "g": 99,
    "b": 122
  },
  "hsl": {
    "h": 213.659,
    "s": 20.197,
    "l": 39.804
  },
  "oklch": {
    "l": 0.49383,
    "c": 0.04307,
    "h": 254.7
  },
  "luminance": 0.12078
}

Semantic roles & 50–950 ramp

primary

#51637A

secondary

#A39584

accent

#996BBD

background

#F8F8F9

surface

#EFF0F2

border

#CACBCC

text

#0B0C0E

muted

#7C7D7E

Preview Lab

Preview with #51637A

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

Preview Lab → · Contrast checker → · Palette generator →