#51687E#51687E

#51687E is a mid, muted cyan. Relative luminance 0.132; OKLCH L 50.7% C 0.045 H 247.6°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#51687E
RGB	rgb(81, 104, 126)
HSL	hsl(209, 22%, 41%)
HSV	hsv(209, 36%, 49%)
CMYK	cmyk(35.7%, 17.5%, 0%, 50.6%)
CIE-LAB	lab(43.00, -2.71, -14.99)
CIE-LCH	lch(43.00, 15.23, 259.75°)
OKLab	oklab(50.74% -0.017 -0.0413)
OKLCH	oklch(50.74% 0.045 247.6)
XYZ	xyz(12.1084, 13.1557, 21.6359)
Luminance	0.1316 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51687E #7E6751

analogous

#517E7D #51687E #51517E

triadic

#51687E #7E5168 #687E51

tetradic

#51687E #7D517E #7E6751 #517E51

square

#51687E #7D517E #7E6751 #517E51

split-complementary

#51687E #7E5151 #7E7D51

monochromatic

#212B33 #394959 #51687E #6C87A0 #91A5B8

Accessibility & contrast

On white

5.78

#51687E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#51687E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51687E

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51687E	#FFFFFF	#000000	##FFFFFF
##51687E	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F687F

Deuteranopia (green-blind)

#5A637E

Tritanopia (blue-blind)

#436D6F

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #51687e;
/* rgb */ color: rgb(81, 104, 126);
/* oklch */ color: oklch(50.7% 0.045 247.6);

Tailwind

colors: {
  custom: {
    50: '#8393a3',
    500: '#51687e',
    950: '#000000',
  },
}

SCSS

$custom: #51687e;
$custom-light: #8393a3;
$custom-dark: #000000;

JSON

{
  "hex": "#51687e",
  "rgb": {
    "r": 81,
    "g": 104,
    "b": 126
  },
  "hsl": {
    "h": 209.333,
    "s": 21.739,
    "l": 40.588
  },
  "oklch": {
    "l": 0.50738,
    "c": 0.04465,
    "h": 247.6
  },
  "luminance": 0.13156
}

Semantic roles & 50–950 ramp

primary

#51687E

secondary

#A59585

accent

#936ABE

background

#F8F9FA

surface

#EFF1F3

border

#CACBCD

text

#0B0D0F

muted

#7C7E7F

Preview Lab

Preview with #51687E

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

Preview Lab → · Contrast checker → · Palette generator →