#51BAE2#51BAE2

#51BAE2 is a light, moderate cyan. Relative luminance 0.424; OKLCH L 74.3% C 0.112 H 226.4°. Best body text is #000000 at 9.47:1 contrast (WCAG AA passes).

Color values

HEX	#51BAE2
RGB	rgb(81, 186, 226)
HSL	hsl(197, 71%, 60%)
HSV	hsv(197, 64%, 89%)
CMYK	cmyk(64.2%, 17.7%, 0%, 11.4%)
CIE-LAB	lab(71.11, -18.23, -28.97)
CIE-LCH	lch(71.11, 34.23, 237.83°)
OKLab	oklab(74.35% -0.077 -0.0809)
OKLCH	oklch(74.35% 0.112 226.4)
XYZ	xyz(34.6742, 42.3545, 78.2846)
Luminance	0.4236 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BAE2 #E27951

analogous

#51E2C2 #51BAE2 #5171E2

triadic

#51BAE2 #E251BA #BAE251

tetradic

#51BAE2 #C251E2 #E27951 #71E251

square

#51BAE2 #C251E2 #E27951 #71E251

split-complementary

#51BAE2 #E25171 #E2C251

monochromatic

#1A7A9E #23A2D3 #51BAE2 #85CFEB #BAE4F3

Accessibility & contrast

On white

2.22

#51BAE2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.47

#51BAE2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BAE2

9.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BAE2	#FFFFFF	#000000	##000000
##51BAE2	1.00	2.22	9.47	9.47
#FFFFFF	2.22	1.00	21.00	21.00
#000000	9.47	21.00	1.00	1.00
##000000	9.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4B7E4

Deuteranopia (green-blind)

#90A8E2

Tritanopia (blue-blind)

#00C6C7

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #51bae2;
/* rgb */ color: rgb(81, 186, 226);
/* oklch */ color: oklch(74.3% 0.112 226.4);

Tailwind

colors: {
  custom: {
    50: '#90ceeb',
    500: '#51bae2',
    950: '#000000',
  },
}

SCSS

$custom: #51bae2;
$custom-light: #90ceeb;
$custom-dark: #000000;

JSON

{
  "hex": "#51bae2",
  "rgb": {
    "r": 81,
    "g": 186,
    "b": 226
  },
  "hsl": {
    "h": 196.552,
    "s": 71.429,
    "l": 60.196
  },
  "oklch": {
    "l": 0.74345,
    "c": 0.11169,
    "h": 226.4
  },
  "luminance": 0.42358
}

Semantic roles & 50–950 ramp

primary

#51BAE2

secondary

#E3BBAC

accent

#4712D3

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #51BAE2

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

Preview Lab → · Contrast checker → · Palette generator →