#51D5E4#51D5E4

#51D5E4 is a light, moderate teal. Relative luminance 0.549; OKLCH L 80.7% C 0.115 H 205.8°. Best body text is #000000 at 11.99:1 contrast (WCAG AA passes).

Color values

HEX	#51D5E4
RGB	rgb(81, 213, 228)
HSL	hsl(186, 73%, 61%)
HSV	hsv(186, 64%, 89%)
CMYK	cmyk(64.5%, 6.6%, 0%, 10.6%)
CIE-LAB	lab(79.00, -31.14, -18.03)
CIE-LCH	lch(79.00, 35.98, 210.07°)
OKLab	oklab(80.7% -0.1035 -0.05)
OKLCH	oklch(80.7% 0.115 205.8)
XYZ	xyz(41.1852, 54.9347, 81.8167)
Luminance	0.5494 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D5E4 #E46051

analogous

#51E4A9 #51D5E4 #518CE4

triadic

#51D5E4 #E451D5 #D5E451

tetradic

#51D5E4 #A951E4 #E46051 #8CE451

square

#51D5E4 #A951E4 #E46051 #8CE451

split-complementary

#51D5E4 #E4518C #E4A951

monochromatic

#1994A2 #21C4D7 #51D5E4 #86E2EC #BBEFF4

Accessibility & contrast

On white

1.75

#51D5E4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.99

#51D5E4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D5E4

11.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D5E4	#FFFFFF	#000000	##000000
##51D5E4	1.00	1.75	11.99	11.99
#FFFFFF	1.75	1.00	21.00	21.00
#000000	11.99	21.00	1.00	1.00
##000000	11.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4CDE5

Deuteranopia (green-blind)

#AFBDE4

Tritanopia (blue-blind)

#00DED9

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #51d5e4;
/* rgb */ color: rgb(81, 213, 228);
/* oklch */ color: oklch(80.7% 0.115 205.8);

Tailwind

colors: {
  custom: {
    50: '#93e2ec',
    500: '#51d5e4',
    950: '#000000',
  },
}

SCSS

$custom: #51d5e4;
$custom-light: #93e2ec;
$custom-dark: #000000;

JSON

{
  "hex": "#51d5e4",
  "rgb": {
    "r": 81,
    "g": 213,
    "b": 228
  },
  "hsl": {
    "h": 186.122,
    "s": 73.134,
    "l": 60.588
  },
  "oklch": {
    "l": 0.80702,
    "c": 0.11499,
    "h": 205.8
  },
  "luminance": 0.54939
}

Semantic roles & 50–950 ramp

primary

#51D5E4

secondary

#A44035

accent

#2410D5

background

#FCFEFE

surface

#F5FCFD

border

#CFD5D5

text

#0E1516

muted

#7F8484

Preview Lab

Preview with #51D5E4

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

Preview Lab → · Contrast checker → · Palette generator →