#51BAEB#51BAEB

#51BAEB is a light, moderate cyan. Relative luminance 0.429; OKLCH L 74.7% C 0.119 H 231.7°. Best body text is #000000 at 9.57:1 contrast (WCAG AA passes).

Color values

HEX	#51BAEB
RGB	rgb(81, 186, 235)
HSL	hsl(199, 79%, 62%)
HSV	hsv(199, 66%, 92%)
CMYK	cmyk(65.5%, 20.9%, 0%, 7.8%)
CIE-LAB	lab(71.46, -15.42, -33.33)
CIE-LCH	lch(71.46, 36.72, 245.18°)
OKLab	oklab(74.74% -0.0738 -0.0934)
OKLCH	oklch(74.74% 0.119 231.7)
XYZ	xyz(35.9417, 42.8615, 84.9601)
Luminance	0.4286 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BAEB #EB8251

analogous

#51EBCF #51BAEB #516DEB

triadic

#51BAEB #EB51BA #BAEB51

tetradic

#51BAEB #CF51EB #EB8251 #6DEB51

square

#51BAEB #CF51EB #EB8251 #6DEB51

split-complementary

#51BAEB #EB516D #EBCF51

monochromatic

#147DAE #1AA4E5 #51BAEB #88D0F1 #BFE6F8

Accessibility & contrast

On white

2.19

#51BAEB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.57

#51BAEB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BAEB

9.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BAEB	#FFFFFF	#000000	##000000
##51BAEB	1.00	2.19	9.57	9.57
#FFFFFF	2.19	1.00	21.00	21.00
#000000	9.57	21.00	1.00	1.00
##000000	9.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2B8ED

Deuteranopia (green-blind)

#8CA8EA

Tritanopia (blue-blind)

#00C7CA

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #51baeb;
/* rgb */ color: rgb(81, 186, 235);
/* oklch */ color: oklch(74.7% 0.119 231.7);

Tailwind

colors: {
  custom: {
    50: '#91cef1',
    500: '#51baeb',
    950: '#000000',
  },
}

SCSS

$custom: #51baeb;
$custom-light: #91cef1;
$custom-dark: #000000;

JSON

{
  "hex": "#51baeb",
  "rgb": {
    "r": 81,
    "g": 186,
    "b": 235
  },
  "hsl": {
    "h": 199.091,
    "s": 79.381,
    "l": 61.961
  },
  "oklch": {
    "l": 0.74735,
    "c": 0.11902,
    "h": 231.7
  },
  "luminance": 0.42865
}

Semantic roles & 50–950 ramp

primary

#51BAEB

secondary

#E8C2B0

accent

#4D0ADC

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #51BAEB

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

Preview Lab → · Contrast checker → · Palette generator →