#51C2DE#51C2DE

#51C2DE is a light, moderate cyan. Relative luminance 0.456; OKLCH L 76.0% C 0.108 H 217.0°. Best body text is #000000 at 10.12:1 contrast (WCAG AA passes).

Color values

HEX	#51C2DE
RGB	rgb(81, 194, 222)
HSL	hsl(192, 68%, 59%)
HSV	hsv(192, 64%, 87%)
CMYK	cmyk(63.5%, 12.6%, 0%, 12.9%)
CIE-LAB	lab(73.29, -23.55, -23.47)
CIE-LCH	lch(73.29, 33.25, 224.91°)
OKLab	oklab(76.04% -0.0866 -0.0653)
OKLCH	oklch(76.04% 0.108 217)
XYZ	xyz(35.8646, 45.6030, 76.0052)
Luminance	0.4561 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C2DE #DE6D51

analogous

#51DEB4 #51C2DE #517CDE

triadic

#51C2DE #DE51C2 #C2DE51

tetradic

#51C2DE #B451DE #DE6D51 #7CDE51

square

#51C2DE #B451DE #DE6D51 #7CDE51

split-complementary

#51C2DE #DE517C #DEB451

monochromatic

#1D7F98 #27ABCB #51C2DE #84D4E8 #B8E6F2

Accessibility & contrast

On white

2.07

#51C2DE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.12

#51C2DE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C2DE

10.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C2DE	#FFFFFF	#000000	##000000
##51C2DE	1.00	2.07	10.12	10.12
#FFFFFF	2.07	1.00	21.00	21.00
#000000	10.12	21.00	1.00	1.00
##000000	10.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AFBDE0

Deuteranopia (green-blind)

#9BADDE

Tritanopia (blue-blind)

#00CCCB

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #51c2de;
/* rgb */ color: rgb(81, 194, 222);
/* oklch */ color: oklch(76.0% 0.108 217.0);

Tailwind

colors: {
  custom: {
    50: '#90d4e8',
    500: '#51c2de',
    950: '#000000',
  },
}

SCSS

$custom: #51c2de;
$custom-light: #90d4e8;
$custom-dark: #000000;

JSON

{
  "hex": "#51c2de",
  "rgb": {
    "r": 81,
    "g": 194,
    "b": 222
  },
  "hsl": {
    "h": 191.915,
    "s": 68.116,
    "l": 59.412
  },
  "oklch": {
    "l": 0.76036,
    "c": 0.10849,
    "h": 217
  },
  "luminance": 0.45607
}

Semantic roles & 50–950 ramp

primary

#51C2DE

secondary

#E1B5AA

accent

#5F3DEB

background

#F9FDFE

surface

#F2FAFC

border

#CCD3D5

text

#0E1416

muted

#7E8384

Preview Lab

Preview with #51C2DE

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

Preview Lab → · Contrast checker → · Palette generator →