#51ACDD#51ACDD

#51ACDD is a light, moderate cyan. Relative luminance 0.365; OKLCH L 70.9% C 0.112 H 235.0°. Best body text is #000000 at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#51ACDD
RGB	rgb(81, 172, 221)
HSL	hsl(201, 67%, 59%)
HSV	hsv(201, 63%, 87%)
CMYK	cmyk(63.3%, 22.2%, 0%, 13.3%)
CIE-LAB	lab(66.88, -12.35, -32.78)
CIE-LCH	lch(66.88, 35.03, 249.35°)
OKLab	oklab(70.91% -0.0643 -0.0919)
OKLCH	oklch(70.91% 0.112 235)
XYZ	xyz(31.1920, 36.4717, 73.7885)
Luminance	0.3648 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51ACDD #DD8251

analogous

#51DDC8 #51ACDD #5166DD

triadic

#51ACDD #DD51AC #ACDD51

tetradic

#51ACDD #C851DD #DD8251 #66DD51

square

#51ACDD #C851DD #DD8251 #66DD51

split-complementary

#51ACDD #DD5166 #DDC851

monochromatic

#1D6C96 #2791C9 #51ACDD #84C4E7 #B7DDF1

Accessibility & contrast

On white

2.53

#51ACDD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.30

#51ACDD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51ACDD

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51ACDD	#FFFFFF	#000000	##000000
##51ACDD	1.00	2.53	8.30	8.30
#FFFFFF	2.53	1.00	21.00	21.00
#000000	8.30	21.00	1.00	1.00
##000000	8.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#95ABDF

Deuteranopia (green-blind)

#819CDC

Tritanopia (blue-blind)

#00B9BC

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #51acdd;
/* rgb */ color: rgb(81, 172, 221);
/* oklch */ color: oklch(70.9% 0.112 235.0);

Tailwind

colors: {
  custom: {
    50: '#8fc4e7',
    500: '#51acdd',
    950: '#000000',
  },
}

SCSS

$custom: #51acdd;
$custom-light: #8fc4e7;
$custom-dark: #000000;

JSON

{
  "hex": "#51acdd",
  "rgb": {
    "r": 81,
    "g": 172,
    "b": 221
  },
  "hsl": {
    "h": 201,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.70905,
    "c": 0.11218,
    "h": 235
  },
  "luminance": 0.36475
}

Semantic roles & 50–950 ramp

primary

#51ACDD

secondary

#E0BDAA

accent

#7A3EEA

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #51ACDD

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

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