#51687A#51687A

#51687A is a mid, muted cyan. Relative luminance 0.131; OKLCH L 50.6% C 0.040 H 242.1°. Best body text is #FFFFFF at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#51687A
RGB	rgb(81, 104, 122)
HSL	hsl(206, 20%, 40%)
HSV	hsv(206, 34%, 48%)
CMYK	cmyk(33.6%, 14.8%, 0%, 52.2%)
CIE-LAB	lab(42.85, -3.82, -12.80)
CIE-LCH	lch(42.85, 13.36, 253.38°)
OKLab	oklab(50.57% -0.0186 -0.0351)
OKLCH	oklch(50.57% 0.04 242.1)
XYZ	xyz(11.8554, 13.0546, 20.3037)
Luminance	0.1305 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51687A #7A6351

analogous

#517A77 #51687A #51547A

triadic

#51687A #7A5168 #687A51

tetradic

#51687A #77517A #7A6351 #547A51

square

#51687A #77517A #7A6351 #547A51

split-complementary

#51687A #7A5154 #7A7751

monochromatic

#202930 #394955 #51687A #6B879D #90A5B5

Accessibility & contrast

On white

5.82

#51687A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#51687A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51687A

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51687A	#FFFFFF	#000000	##FFFFFF
##51687A	1.00	5.82	3.61	5.82
#FFFFFF	5.82	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#61687B

Deuteranopia (green-blind)

#5B637A

Tritanopia (blue-blind)

#446C6E

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #51687a;
/* rgb */ color: rgb(81, 104, 122);
/* oklch */ color: oklch(50.6% 0.040 242.1);

Tailwind

colors: {
  custom: {
    50: '#8393a0',
    500: '#51687a',
    950: '#000000',
  },
}

SCSS

$custom: #51687a;
$custom-light: #8393a0;
$custom-dark: #000000;

JSON

{
  "hex": "#51687a",
  "rgb": {
    "r": 81,
    "g": 104,
    "b": 122
  },
  "hsl": {
    "h": 206.341,
    "s": 20.197,
    "l": 39.804
  },
  "oklch": {
    "l": 0.50569,
    "c": 0.03976,
    "h": 242.1
  },
  "luminance": 0.13055
}

Semantic roles & 50–950 ramp

primary

#51687A

secondary

#A39284

accent

#8F6BBD

background

#F8F9F9

surface

#EFF1F2

border

#CACBCC

text

#0B0D0E

muted

#7C7E7E

Preview Lab

Preview with #51687A

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

Preview Lab → · Contrast checker → · Palette generator →