#51BEDB#51BEDB

#51BEDB is a light, moderate cyan. Relative luminance 0.437; OKLCH L 75.0% C 0.107 H 218.3°. Best body text is #000000 at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#51BEDB
RGB	rgb(81, 190, 219)
HSL	hsl(193, 66%, 59%)
HSV	hsv(193, 63%, 86%)
CMYK	cmyk(63%, 13.2%, 0%, 14.1%)
CIE-LAB	lab(72.02, -22.42, -23.78)
CIE-LCH	lch(72.02, 32.68, 226.68°)
OKLab	oklab(74.98% -0.0837 -0.0662)
OKLCH	oklch(74.98% 0.107 218.3)
XYZ	xyz(34.5878, 43.6871, 73.6137)
Luminance	0.4369 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BEDB #DB6E51

analogous

#51DBB3 #51BEDB #5179DB

triadic

#51BEDB #DB51BE #BEDB51

tetradic

#51BEDB #B351DB #DB6E51 #79DB51

square

#51BEDB #B351DB #DB6E51 #79DB51

split-complementary

#51BEDB #DB5179 #DBB351

monochromatic

#1E7B93 #29A5C6 #51BEDB #84D1E5 #B6E4F0

Accessibility & contrast

On white

2.16

#51BEDB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.74

#51BEDB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BEDB

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BEDB	#FFFFFF	#000000	##000000
##51BEDB	1.00	2.16	9.74	9.74
#FFFFFF	2.16	1.00	21.00	21.00
#000000	9.74	21.00	1.00	1.00
##000000	9.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ABB9DD

Deuteranopia (green-blind)

#98AADB

Tritanopia (blue-blind)

#00C8C7

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #51bedb;
/* rgb */ color: rgb(81, 190, 219);
/* oklch */ color: oklch(75.0% 0.107 218.3);

Tailwind

colors: {
  custom: {
    50: '#90d1e6',
    500: '#51bedb',
    950: '#000000',
  },
}

SCSS

$custom: #51bedb;
$custom-light: #90d1e6;
$custom-dark: #000000;

JSON

{
  "hex": "#51bedb",
  "rgb": {
    "r": 81,
    "g": 190,
    "b": 219
  },
  "hsl": {
    "h": 192.609,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.74984,
    "c": 0.10668,
    "h": 218.3
  },
  "luminance": 0.43691
}

Semantic roles & 50–950 ramp

primary

#51BEDB

secondary

#DFB4A9

accent

#633FE9

background

#F9FCFE

surface

#F2F9FC

border

#CCD2D5

text

#0E1416

muted

#7E8284

Preview Lab

Preview with #51BEDB

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

Preview Lab → · Contrast checker → · Palette generator →