#51D5E8#51D5E8

#51D5E8 is a light, moderate teal. Relative luminance 0.552; OKLCH L 80.8% C 0.116 H 208.5°. Best body text is #000000 at 12.03:1 contrast (WCAG AA passes).

Color values

HEX	#51D5E8
RGB	rgb(81, 213, 232)
HSL	hsl(188, 77%, 61%)
HSV	hsv(188, 65%, 91%)
CMYK	cmyk(65.1%, 8.2%, 0%, 9%)
CIE-LAB	lab(79.13, -29.98, -19.97)
CIE-LCH	lch(79.13, 36.03, 213.66°)
OKLab	oklab(80.85% -0.1019 -0.0554)
OKLCH	oklch(80.85% 0.116 208.5)
XYZ	xyz(41.7469, 55.1594, 84.7750)
Luminance	0.5516 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D5E8 #E86451

analogous

#51E8B0 #51D5E8 #518AE8

triadic

#51D5E8 #E851D5 #D5E851

tetradic

#51D5E8 #B051E8 #E86451 #8AE851

square

#51D5E8 #B051E8 #E86451 #8AE851

split-complementary

#51D5E8 #E8518A #E8B051

monochromatic

#1696A8 #1DC6DE #51D5E8 #87E2EF #BDEFF6

Accessibility & contrast

On white

1.75

#51D5E8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.03

#51D5E8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D5E8

12.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D5E8	#FFFFFF	#000000	##000000
##51D5E8	1.00	1.75	12.03	12.03
#FFFFFF	1.75	1.00	21.00	21.00
#000000	12.03	21.00	1.00	1.00
##000000	12.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C3CDE9

Deuteranopia (green-blind)

#ADBDE8

Tritanopia (blue-blind)

#00DEDB

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #51d5e8;
/* rgb */ color: rgb(81, 213, 232);
/* oklch */ color: oklch(80.8% 0.116 208.5);

Tailwind

colors: {
  custom: {
    50: '#93e2ef',
    500: '#51d5e8',
    950: '#000000',
  },
}

SCSS

$custom: #51d5e8;
$custom-light: #93e2ef;
$custom-dark: #000000;

JSON

{
  "hex": "#51d5e8",
  "rgb": {
    "r": 81,
    "g": 213,
    "b": 232
  },
  "hsl": {
    "h": 187.55,
    "s": 76.65,
    "l": 61.373
  },
  "oklch": {
    "l": 0.8085,
    "c": 0.11604,
    "h": 208.5
  },
  "luminance": 0.55164
}

Semantic roles & 50–950 ramp

primary

#51D5E8

secondary

#AA4233

accent

#260DD9

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0E1516

muted

#7F8485

Preview Lab

Preview with #51D5E8

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

Preview Lab → · Contrast checker → · Palette generator →