#51BEDF#51BEDF

#51BEDF is a light, moderate cyan. Relative luminance 0.439; OKLCH L 75.1% C 0.109 H 221.1°. Best body text is #000000 at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#51BEDF
RGB	rgb(81, 190, 223)
HSL	hsl(194, 69%, 60%)
HSV	hsv(194, 64%, 87%)
CMYK	cmyk(63.7%, 14.8%, 0%, 12.5%)
CIE-LAB	lab(72.16, -21.21, -25.73)
CIE-LCH	lch(72.16, 33.35, 230.50°)
OKLab	oklab(75.15% -0.0822 -0.0717)
OKLCH	oklch(75.15% 0.109 221.1)
XYZ	xyz(35.1207, 43.9002, 76.4204)
Luminance	0.4390 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BEDF #DF7251

analogous

#51DFB9 #51BEDF #5177DF

triadic

#51BEDF #DF51BE #BEDF51

tetradic

#51BEDF #B951DF #DF7251 #77DF51

square

#51BEDF #B951DF #DF7251 #77DF51

split-complementary

#51BEDF #DF5177 #DFB951

monochromatic

#1C7C99 #26A6CD #51BEDF #85D1E9 #B8E5F2

Accessibility & contrast

On white

2.15

#51BEDF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.78

#51BEDF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BEDF

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BEDF	#FFFFFF	#000000	##000000
##51BEDF	1.00	2.15	9.78	9.78
#FFFFFF	2.15	1.00	21.00	21.00
#000000	9.78	21.00	1.00	1.00
##000000	9.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AAB9E1

Deuteranopia (green-blind)

#96AADF

Tritanopia (blue-blind)

#00C9C8

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #51bedf;
/* rgb */ color: rgb(81, 190, 223);
/* oklch */ color: oklch(75.1% 0.109 221.1);

Tailwind

colors: {
  custom: {
    50: '#90d1e9',
    500: '#51bedf',
    950: '#000000',
  },
}

SCSS

$custom: #51bedf;
$custom-light: #90d1e9;
$custom-dark: #000000;

JSON

{
  "hex": "#51bedf",
  "rgb": {
    "r": 81,
    "g": 190,
    "b": 223
  },
  "hsl": {
    "h": 193.944,
    "s": 68.932,
    "l": 59.608
  },
  "oklch": {
    "l": 0.75146,
    "c": 0.10905,
    "h": 221.1
  },
  "luminance": 0.43904
}

Semantic roles & 50–950 ramp

primary

#51BEDF

secondary

#E1B7AA

accent

#653CEC

background

#F9FCFE

surface

#F2F9FC

border

#CCD2D5

text

#0E1416

muted

#7E8284

Preview Lab

Preview with #51BEDF

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

Preview Lab → · Contrast checker → · Palette generator →