#51D9E7#51D9E7

#51D9E7 is a light, moderate teal. Relative luminance 0.571; OKLCH L 81.7% C 0.117 H 204.8°. Best body text is #000000 at 12.43:1 contrast (WCAG AA passes).

Color values

HEX	#51D9E7
RGB	rgb(81, 217, 231)
HSL	hsl(186, 76%, 61%)
HSV	hsv(186, 65%, 91%)
CMYK	cmyk(64.9%, 6.1%, 0%, 9.4%)
CIE-LAB	lab(80.26, -32.19, -17.74)
CIE-LCH	lch(80.26, 36.75, 208.85°)
OKLab	oklab(81.75% -0.1063 -0.0492)
OKLCH	oklch(81.75% 0.117 204.8)
XYZ	xyz(42.6238, 57.1398, 84.3685)
Luminance	0.5715 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D9E7 #E75F51

analogous

#51E7AA #51D9E7 #518EE7

triadic

#51D9E7 #E751D9 #D9E751

tetradic

#51D9E7 #AA51E7 #E75F51 #8EE751

square

#51D9E7 #AA51E7 #E75F51 #8EE751

split-complementary

#51D9E7 #E7518E #E7AA51

monochromatic

#1799A7 #1ECBDC #51D9E7 #87E5EE #BDF0F6

Accessibility & contrast

On white

1.69

#51D9E7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.43

#51D9E7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D9E7

12.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D9E7	#FFFFFF	#000000	##000000
##51D9E7	1.00	1.69	12.43	12.43
#FFFFFF	1.69	1.00	21.00	21.00
#000000	12.43	21.00	1.00	1.00
##000000	12.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C8D1E8

Deuteranopia (green-blind)

#B2C0E8

Tritanopia (blue-blind)

#00E2DD

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #51d9e7;
/* rgb */ color: rgb(81, 217, 231);
/* oklch */ color: oklch(81.7% 0.117 204.8);

Tailwind

colors: {
  custom: {
    50: '#93e5ee',
    500: '#51d9e7',
    950: '#000000',
  },
}

SCSS

$custom: #51d9e7;
$custom-light: #93e5ee;
$custom-dark: #000000;

JSON

{
  "hex": "#51d9e7",
  "rgb": {
    "r": 81,
    "g": 217,
    "b": 231
  },
  "hsl": {
    "h": 185.6,
    "s": 75.758,
    "l": 61.176
  },
  "oklch": {
    "l": 0.81746,
    "c": 0.11717,
    "h": 204.8
  },
  "luminance": 0.57145
}

Semantic roles & 50–950 ramp

primary

#51D9E7

secondary

#A83F34

accent

#200ED8

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0E1616

muted

#7F8485

Preview Lab

Preview with #51D9E7

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

Preview Lab → · Contrast checker → · Palette generator →