#51BEE2#51BEE2

#51BEE2 is a light, moderate cyan. Relative luminance 0.441; OKLCH L 75.3% C 0.111 H 223.1°. Best body text is #000000 at 9.81:1 contrast (WCAG AA passes).

Color values

HEX	#51BEE2
RGB	rgb(81, 190, 226)
HSL	hsl(195, 71%, 60%)
HSV	hsv(195, 64%, 89%)
CMYK	cmyk(64.2%, 15.9%, 0%, 11.4%)
CIE-LAB	lab(72.27, -20.30, -27.20)
CIE-LCH	lch(72.27, 33.94, 233.26°)
OKLab	oklab(75.27% -0.081 -0.0759)
OKLCH	oklch(75.27% 0.111 223.1)
XYZ	xyz(35.5287, 44.0635, 78.5694)
Luminance	0.4407 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BEE2 #E27551

analogous

#51E2BE #51BEE2 #5175E2

triadic

#51BEE2 #E251BE #BEE251

tetradic

#51BEE2 #BE51E2 #E27551 #75E251

square

#51BEE2 #BE51E2 #E27551 #75E251

split-complementary

#51BEE2 #E25175 #E2BE51

monochromatic

#1A7D9E #23A7D3 #51BEE2 #85D2EB #BAE5F3

Accessibility & contrast

On white

2.14

#51BEE2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.81

#51BEE2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BEE2

9.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BEE2	#FFFFFF	#000000	##000000
##51BEE2	1.00	2.14	9.81	9.81
#FFFFFF	2.14	1.00	21.00	21.00
#000000	9.81	21.00	1.00	1.00
##000000	9.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9BAE4

Deuteranopia (green-blind)

#95ABE2

Tritanopia (blue-blind)

#00C9CA

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #51bee2;
/* rgb */ color: rgb(81, 190, 226);
/* oklch */ color: oklch(75.3% 0.111 223.1);

Tailwind

colors: {
  custom: {
    50: '#91d1eb',
    500: '#51bee2',
    950: '#000000',
  },
}

SCSS

$custom: #51bee2;
$custom-light: #91d1eb;
$custom-dark: #000000;

JSON

{
  "hex": "#51bee2",
  "rgb": {
    "r": 81,
    "g": 190,
    "b": 226
  },
  "hsl": {
    "h": 194.897,
    "s": 71.429,
    "l": 60.196
  },
  "oklch": {
    "l": 0.75269,
    "c": 0.11101,
    "h": 223.1
  },
  "luminance": 0.44067
}

Semantic roles & 50–950 ramp

primary

#51BEE2

secondary

#E3B9AC

accent

#4212D3

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1416

muted

#7E8284

Preview Lab

Preview with #51BEE2

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

Preview Lab → · Contrast checker → · Palette generator →