#51ADDD#51ADDD

#51ADDD is a light, moderate cyan. Relative luminance 0.369; OKLCH L 71.1% C 0.112 H 234.2°. Best body text is #000000 at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#51ADDD
RGB	rgb(81, 173, 221)
HSL	hsl(201, 67%, 59%)
HSV	hsv(201, 63%, 87%)
CMYK	cmyk(63.3%, 21.7%, 0%, 13.3%)
CIE-LAB	lab(67.17, -12.89, -32.33)
CIE-LCH	lch(67.17, 34.81, 248.26°)
OKLab	oklab(71.13% -0.0654 -0.0906)
OKLCH	oklch(71.13% 0.112 234.2)
XYZ	xyz(31.3830, 36.8537, 73.8522)
Luminance	0.3686 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51ADDD #DD8151

analogous

#51DDC7 #51ADDD #5167DD

triadic

#51ADDD #DD51AD #ADDD51

tetradic

#51ADDD #C751DD #DD8151 #67DD51

square

#51ADDD #C751DD #DD8151 #67DD51

split-complementary

#51ADDD #DD5167 #DDC751

monochromatic

#1D6D96 #2792C9 #51ADDD #84C5E7 #B7DDF1

Accessibility & contrast

On white

2.51

#51ADDD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.37

#51ADDD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51ADDD

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51ADDD	#FFFFFF	#000000	##000000
##51ADDD	1.00	2.51	8.37	8.37
#FFFFFF	2.51	1.00	21.00	21.00
#000000	8.37	21.00	1.00	1.00
##000000	8.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#96ABDF

Deuteranopia (green-blind)

#829DDC

Tritanopia (blue-blind)

#00BABD

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #51addd;
/* rgb */ color: rgb(81, 173, 221);
/* oklch */ color: oklch(71.1% 0.112 234.2);

Tailwind

colors: {
  custom: {
    50: '#8fc5e7',
    500: '#51addd',
    950: '#000000',
  },
}

SCSS

$custom: #51addd;
$custom-light: #8fc5e7;
$custom-dark: #000000;

JSON

{
  "hex": "#51addd",
  "rgb": {
    "r": 81,
    "g": 173,
    "b": 221
  },
  "hsl": {
    "h": 200.571,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.71134,
    "c": 0.11173,
    "h": 234.2
  },
  "luminance": 0.36857
}

Semantic roles & 50–950 ramp

primary

#51ADDD

secondary

#E0BCAA

accent

#793EEA

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #51ADDD

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

Preview Lab → · Contrast checker → · Palette generator →