#51BAE7#51BAE7

#51BAE7 is a light, moderate cyan. Relative luminance 0.426; OKLCH L 74.6% C 0.116 H 229.5°. Best body text is #000000 at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#51BAE7
RGB	rgb(81, 186, 231)
HSL	hsl(198, 76%, 61%)
HSV	hsv(198, 65%, 91%)
CMYK	cmyk(64.9%, 19.5%, 0%, 9.4%)
CIE-LAB	lab(71.31, -16.67, -31.40)
CIE-LCH	lch(71.31, 35.55, 242.03°)
OKLab	oklab(74.56% -0.0752 -0.0879)
OKLCH	oklch(74.56% 0.116 229.5)
XYZ	xyz(35.3703, 42.6329, 81.9507)
Luminance	0.4264 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BAE7 #E77E51

analogous

#51E7C9 #51BAE7 #516FE7

triadic

#51BAE7 #E751BA #BAE751

tetradic

#51BAE7 #C951E7 #E77E51 #6FE751

square

#51BAE7 #C951E7 #E77E51 #6FE751

split-complementary

#51BAE7 #E7516F #E7C951

monochromatic

#177CA7 #1EA3DC #51BAE7 #87CFEE #BDE5F6

Accessibility & contrast

On white

2.20

#51BAE7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.53

#51BAE7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BAE7

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BAE7	#FFFFFF	#000000	##000000
##51BAE7	1.00	2.20	9.53	9.53
#FFFFFF	2.20	1.00	21.00	21.00
#000000	9.53	21.00	1.00	1.00
##000000	9.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A3B7E9

Deuteranopia (green-blind)

#8EA8E6

Tritanopia (blue-blind)

#00C7C9

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #51bae7;
/* rgb */ color: rgb(81, 186, 231);
/* oklch */ color: oklch(74.6% 0.116 229.5);

Tailwind

colors: {
  custom: {
    50: '#91ceee',
    500: '#51bae7',
    950: '#000000',
  },
}

SCSS

$custom: #51bae7;
$custom-light: #91ceee;
$custom-dark: #000000;

JSON

{
  "hex": "#51bae7",
  "rgb": {
    "r": 81,
    "g": 186,
    "b": 231
  },
  "hsl": {
    "h": 198,
    "s": 75.758,
    "l": 61.176
  },
  "oklch": {
    "l": 0.7456,
    "c": 0.11563,
    "h": 229.5
  },
  "luminance": 0.42637
}

Semantic roles & 50–950 ramp

primary

#51BAE7

secondary

#E6BFAE

accent

#4A0ED8

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #51BAE7

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

Preview Lab → · Contrast checker → · Palette generator →