#51B2CE#51B2CE

#51B2CE is a light, moderate cyan. Relative luminance 0.380; OKLCH L 71.7% C 0.099 H 219.7°. Best body text is #000000 at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#51B2CE
RGB	rgb(81, 178, 206)
HSL	hsl(193, 56%, 56%)
HSV	hsv(193, 61%, 81%)
CMYK	cmyk(60.7%, 13.6%, 0%, 19.2%)
CIE-LAB	lab(68.05, -20.17, -22.72)
CIE-LCH	lch(68.05, 30.38, 228.40°)
OKLab	oklab(71.65% -0.0761 -0.0632)
OKLCH	oklch(71.65% 0.099 219.7)
XYZ	xyz(30.4499, 38.0433, 64.1189)
Luminance	0.3805 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B2CE #CE6D51

analogous

#51CEAC #51B2CE #5174CE

triadic

#51B2CE #CE51B2 #B2CE51

tetradic

#51B2CE #AC51CE #CE6D51 #74CE51

square

#51B2CE #AC51CE #CE6D51 #74CE51

split-complementary

#51B2CE #CE5174 #CEAC51

monochromatic

#246C80 #3294B0 #51B2CE #81C7DB #B1DCE9

Accessibility & contrast

On white

2.44

#51B2CE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.61

#51B2CE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B2CE

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B2CE	#FFFFFF	#000000	##000000
##51B2CE	1.00	2.44	8.61	8.61
#FFFFFF	2.44	1.00	21.00	21.00
#000000	8.61	21.00	1.00	1.00
##000000	8.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1AED0

Deuteranopia (green-blind)

#8FA0CE

Tritanopia (blue-blind)

#00BBBB

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #51b2ce;
/* rgb */ color: rgb(81, 178, 206);
/* oklch */ color: oklch(71.7% 0.099 219.7);

Tailwind

colors: {
  custom: {
    50: '#8ec9dd',
    500: '#51b2ce',
    950: '#000000',
  },
}

SCSS

$custom: #51b2ce;
$custom-light: #8ec9dd;
$custom-dark: #000000;

JSON

{
  "hex": "#51b2ce",
  "rgb": {
    "r": 81,
    "g": 178,
    "b": 206
  },
  "hsl": {
    "h": 193.44,
    "s": 56.054,
    "l": 56.275
  },
  "oklch": {
    "l": 0.71652,
    "c": 0.09892,
    "h": 219.7
  },
  "luminance": 0.38046
}

Semantic roles & 50–950 ramp

primary

#51B2CE

secondary

#D7AFA4

accent

#6A48DF

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #51B2CE

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

Preview Lab → · Contrast checker → · Palette generator →