#51D7E9#51D7E9

#51D7E9 is a light, moderate teal. Relative luminance 0.562; OKLCH L 81.4% C 0.117 H 207.7°. Best body text is #000000 at 12.25:1 contrast (WCAG AA passes).

Color values

HEX	#51D7E9
RGB	rgb(81, 215, 233)
HSL	hsl(187, 78%, 62%)
HSV	hsv(187, 65%, 91%)
CMYK	cmyk(65.2%, 7.7%, 0%, 8.6%)
CIE-LAB	lab(79.74, -30.66, -19.58)
CIE-LCH	lch(79.74, 36.38, 212.56°)
OKLab	oklab(81.35% -0.1035 -0.0543)
OKLCH	oklch(81.35% 0.117 207.7)
XYZ	xyz(42.3955, 56.2287, 85.6939)
Luminance	0.5623 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D7E9 #E96351

analogous

#51E9AF #51D7E9 #518BE9

triadic

#51D7E9 #E951D7 #D7E951

tetradic

#51D7E9 #AF51E9 #E96351 #8BE951

square

#51D7E9 #AF51E9 #E96351 #8BE951

split-complementary

#51D7E9 #E9518B #E9AF51

monochromatic

#1699AA #1CC9E0 #51D7E9 #87E3F0 #BEF0F7

Accessibility & contrast

On white

1.71

#51D7E9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.25

#51D7E9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D7E9

12.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D7E9	#FFFFFF	#000000	##000000
##51D7E9	1.00	1.71	12.25	12.25
#FFFFFF	1.71	1.00	21.00	21.00
#000000	12.25	21.00	1.00	1.00
##000000	12.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5CFEA

Deuteranopia (green-blind)

#AFBFE9

Tritanopia (blue-blind)

#00E0DC

Achromatopsia (no color)

#C6C6C6

Design tokens & code

CSS

--color: #51d7e9;
/* rgb */ color: rgb(81, 215, 233);
/* oklch */ color: oklch(81.4% 0.117 207.7);

Tailwind

colors: {
  custom: {
    50: '#93e3f0',
    500: '#51d7e9',
    950: '#000000',
  },
}

SCSS

$custom: #51d7e9;
$custom-light: #93e3f0;
$custom-dark: #000000;

JSON

{
  "hex": "#51d7e9",
  "rgb": {
    "r": 81,
    "g": 215,
    "b": 233
  },
  "hsl": {
    "h": 187.105,
    "s": 77.551,
    "l": 61.569
  },
  "oklch": {
    "l": 0.81353,
    "c": 0.11693,
    "h": 207.7
  },
  "luminance": 0.56233
}

Semantic roles & 50–950 ramp

primary

#51D7E9

secondary

#AB4133

accent

#240CDA

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0E1516

muted

#7F8485

Preview Lab

Preview with #51D7E9

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

Preview Lab → · Contrast checker → · Palette generator →