#51C2DC#51C2DC

#51C2DC is a light, moderate cyan. Relative luminance 0.455; OKLCH L 76.0% C 0.107 H 215.6°. Best body text is #000000 at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#51C2DC
RGB	rgb(81, 194, 220)
HSL	hsl(191, 67%, 59%)
HSV	hsv(191, 63%, 86%)
CMYK	cmyk(63.2%, 11.8%, 0%, 13.7%)
CIE-LAB	lab(73.22, -24.15, -22.49)
CIE-LCH	lch(73.22, 33.00, 222.97°)
OKLab	oklab(75.96% -0.0874 -0.0625)
OKLCH	oklch(75.96% 0.107 215.6)
XYZ	xyz(35.5981, 45.4964, 74.6019)
Luminance	0.4550 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C2DC #DC6B51

analogous

#51DCB1 #51C2DC #517DDC

triadic

#51C2DC #DC51C2 #C2DC51

tetradic

#51C2DC #B151DC #DC6B51 #7DDC51

square

#51C2DC #B151DC #DC6B51 #7DDC51

split-complementary

#51C2DC #DC517D #DCB151

monochromatic

#1E7E95 #28AAC8 #51C2DC #84D4E6 #B7E6F0

Accessibility & contrast

On white

2.08

#51C2DC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.10

#51C2DC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C2DC

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C2DC	#FFFFFF	#000000	##000000
##51C2DC	1.00	2.08	10.10	10.10
#FFFFFF	2.08	1.00	21.00	21.00
#000000	10.10	21.00	1.00	1.00
##000000	10.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B0BCDD

Deuteranopia (green-blind)

#9CADDC

Tritanopia (blue-blind)

#00CCCA

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #51c2dc;
/* rgb */ color: rgb(81, 194, 220);
/* oklch */ color: oklch(76.0% 0.107 215.6);

Tailwind

colors: {
  custom: {
    50: '#90d4e7',
    500: '#51c2dc',
    950: '#000000',
  },
}

SCSS

$custom: #51c2dc;
$custom-light: #90d4e7;
$custom-dark: #000000;

JSON

{
  "hex": "#51c2dc",
  "rgb": {
    "r": 81,
    "g": 194,
    "b": 220
  },
  "hsl": {
    "h": 191.223,
    "s": 66.507,
    "l": 59.02
  },
  "oklch": {
    "l": 0.75957,
    "c": 0.10749,
    "h": 215.6
  },
  "luminance": 0.455
}

Semantic roles & 50–950 ramp

primary

#51C2DC

secondary

#E0B3A9

accent

#5E3EE9

background

#F9FDFE

surface

#F2FAFC

border

#CCD3D5

text

#0E1416

muted

#7E8384

Preview Lab

Preview with #51C2DC

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

Preview Lab → · Contrast checker → · Palette generator →