#51CAEF#51CAEF

#51CAEF is a light, moderate cyan. Relative luminance 0.502; OKLCH L 78.6% C 0.118 H 221.7°. Best body text is #000000 at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#51CAEF
RGB	rgb(81, 202, 239)
HSL	hsl(194, 83%, 63%)
HSV	hsv(194, 66%, 94%)
CMYK	cmyk(66.1%, 15.5%, 0%, 6.3%)
CIE-LAB	lab(76.20, -22.46, -28.19)
CIE-LCH	lch(76.20, 36.04, 231.45°)
OKLab	oklab(78.57% -0.0883 -0.0786)
OKLCH	oklch(78.57% 0.118 221.7)
XYZ	xyz(40.0875, 50.2180, 89.2250)
Luminance	0.5022 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CAEF #EF7651

analogous

#51EFC5 #51CAEF #517BEF

triadic

#51CAEF #EF51CA #CAEF51

tetradic

#51CAEF #C551EF #EF7651 #7BEF51

square

#51CAEF #C551EF #EF7651 #7BEF51

split-complementary

#51CAEF #EF517B #EFC551

monochromatic

#118EB5 #19B9EA #51CAEF #89DBF4 #C1ECF9

Accessibility & contrast

On white

1.90

#51CAEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.04

#51CAEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CAEF

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CAEF	#FFFFFF	#000000	##000000
##51CAEF	1.00	1.90	11.04	11.04
#FFFFFF	1.90	1.00	21.00	21.00
#000000	11.04	21.00	1.00	1.00
##000000	11.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4C5F1

Deuteranopia (green-blind)

#9EB5EF

Tritanopia (blue-blind)

#00D6D6

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #51caef;
/* rgb */ color: rgb(81, 202, 239);
/* oklch */ color: oklch(78.6% 0.118 221.7);

Tailwind

colors: {
  custom: {
    50: '#93daf4',
    500: '#51caef',
    950: '#000000',
  },
}

SCSS

$custom: #51caef;
$custom-light: #93daf4;
$custom-dark: #000000;

JSON

{
  "hex": "#51caef",
  "rgb": {
    "r": 81,
    "g": 202,
    "b": 239
  },
  "hsl": {
    "h": 194.051,
    "s": 83.158,
    "l": 62.745
  },
  "oklch": {
    "l": 0.78575,
    "c": 0.11824,
    "h": 221.7
  },
  "luminance": 0.50222
}

Semantic roles & 50–950 ramp

primary

#51CAEF

secondary

#B54F30

accent

#3906E0

background

#FCFEFF

surface

#F5FBFE

border

#CFD4D6

text

#0E1417

muted

#7F8385

Preview Lab

Preview with #51CAEF

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

Preview Lab → · Contrast checker → · Palette generator →