#51687F#51687F

#51687F is a mid, muted cyan. Relative luminance 0.132; OKLCH L 50.8% C 0.046 H 248.7°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#51687F
RGB	rgb(81, 104, 127)
HSL	hsl(210, 22%, 41%)
HSV	hsv(210, 36%, 50%)
CMYK	cmyk(36.2%, 18.1%, 0%, 50.2%)
CIE-LAB	lab(43.04, -2.43, -15.53)
CIE-LCH	lch(43.04, 15.72, 261.11°)
OKLab	oklab(50.78% -0.0167 -0.0428)
OKLCH	oklch(50.78% 0.046 248.7)
XYZ	xyz(12.1732, 13.1817, 21.9775)
Luminance	0.1318 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51687F #7F6851

analogous

#517F7F #51687F #51517F

triadic

#51687F #7F5168 #687F51

tetradic

#51687F #7F517F #7F6851 #517F51

square

#51687F #7F517F #7F6851 #517F51

split-complementary

#51687F #7F5151 #7F7F51

monochromatic

#212B34 #39495A #51687F #6C87A1 #91A5B9

Accessibility & contrast

On white

5.77

#51687F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#51687F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51687F

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51687F	#FFFFFF	#000000	##FFFFFF
##51687F	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F6880

Deuteranopia (green-blind)

#59647F

Tritanopia (blue-blind)

#426D70

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #51687f;
/* rgb */ color: rgb(81, 104, 127);
/* oklch */ color: oklch(50.8% 0.046 248.7);

Tailwind

colors: {
  custom: {
    50: '#8393a4',
    500: '#51687f',
    950: '#000000',
  },
}

SCSS

$custom: #51687f;
$custom-light: #8393a4;
$custom-dark: #000000;

JSON

{
  "hex": "#51687f",
  "rgb": {
    "r": 81,
    "g": 104,
    "b": 127
  },
  "hsl": {
    "h": 210,
    "s": 22.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.50782,
    "c": 0.04592,
    "h": 248.7
  },
  "luminance": 0.13182
}

Semantic roles & 50–950 ramp

primary

#51687F

secondary

#A69686

accent

#9469BF

background

#F8F9FA

surface

#EFF1F4

border

#CACBCE

text

#0B0D0F

muted

#7C7E7F

Preview Lab

Preview with #51687F

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

Preview Lab → · Contrast checker → · Palette generator →