#51738D#51738D

#51738D is a mid, muted cyan. Relative luminance 0.159; OKLCH L 54.0% C 0.056 H 242.0°. Best body text is #FFFFFF at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#51738D
RGB	rgb(81, 115, 141)
HSL	hsl(206, 27%, 44%)
HSV	hsv(206, 43%, 55%)
CMYK	cmyk(42.6%, 18.4%, 0%, 44.7%)
CIE-LAB	lab(46.89, -4.94, -18.02)
CIE-LCH	lch(46.89, 18.68, 254.66°)
OKLab	oklab(54% -0.0265 -0.0498)
OKLCH	oklch(54% 0.056 242)
XYZ	xyz(14.3302, 15.9330, 27.5144)
Luminance	0.1593 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51738D #8D6B51

analogous

#518D89 #51738D #51558D

triadic

#51738D #8D5173 #738D51

tetradic

#51738D #89518D #8D6B51 #558D51

square

#51738D #89518D #8D6B51 #558D51

split-complementary

#51738D #8D5155 #8D8951

monochromatic

#24343F #3B5366 #51738D #6F92AC #96AFC3

Accessibility & contrast

On white

5.02

#51738D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.19

#51738D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51738D

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51738D	#FFFFFF	#000000	##FFFFFF
##51738D	1.00	5.02	4.19	5.02
#FFFFFF	5.02	1.00	21.00	1.00
#000000	4.19	21.00	1.00	21.00
##FFFFFF	5.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#68738E

Deuteranopia (green-blind)

#606C8D

Tritanopia (blue-blind)

#3A797C

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #51738d;
/* rgb */ color: rgb(81, 115, 141);
/* oklch */ color: oklch(54.0% 0.056 242.0);

Tailwind

colors: {
  custom: {
    50: '#849bae',
    500: '#51738d',
    950: '#000000',
  },
}

SCSS

$custom: #51738d;
$custom-light: #849bae;
$custom-dark: #000000;

JSON

{
  "hex": "#51738d",
  "rgb": {
    "r": 81,
    "g": 115,
    "b": 141
  },
  "hsl": {
    "h": 206,
    "s": 27.027,
    "l": 43.529
  },
  "oklch": {
    "l": 0.53998,
    "c": 0.05646,
    "h": 242
  },
  "luminance": 0.15934
}

Semantic roles & 50–950 ramp

primary

#51738D

secondary

#AF9A8A

accent

#8E64C3

background

#F8F9FA

surface

#EFF2F4

border

#CACCCE

text

#0B0E10

muted

#7C7E7F

Preview Lab

Preview with #51738D

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

Preview Lab → · Contrast checker → · Palette generator →