#51D5E1#51D5E1

#51D5E1 is a light, moderate teal. Relative luminance 0.548; OKLCH L 80.6% C 0.114 H 203.7°. Best body text is #000000 at 11.95:1 contrast (WCAG AA passes).

Color values

HEX	#51D5E1
RGB	rgb(81, 213, 225)
HSL	hsl(185, 71%, 60%)
HSV	hsv(185, 64%, 88%)
CMYK	cmyk(64%, 5.3%, 0%, 11.8%)
CIE-LAB	lab(78.91, -32.00, -16.57)
CIE-LCH	lch(78.91, 36.03, 207.37°)
OKLab	oklab(80.59% -0.1048 -0.0459)
OKLCH	oklch(80.59% 0.114 203.7)
XYZ	xyz(40.7724, 54.7696, 79.6424)
Luminance	0.5477 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D5E1 #E15D51

analogous

#51E1A5 #51D5E1 #518DE1

triadic

#51D5E1 #E151D5 #D5E151

tetradic

#51D5E1 #A551E1 #E15D51 #8DE151

square

#51D5E1 #A551E1 #E15D51 #8DE151

split-complementary

#51D5E1 #E1518D #E1A551

monochromatic

#1B929D #24C2D1 #51D5E1 #85E2EA #B9EEF3

Accessibility & contrast

On white

1.76

#51D5E1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.95

#51D5E1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D5E1

11.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D5E1	#FFFFFF	#000000	##000000
##51D5E1	1.00	1.76	11.95	11.95
#FFFFFF	1.76	1.00	21.00	21.00
#000000	11.95	21.00	1.00	1.00
##000000	11.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5CDE2

Deuteranopia (green-blind)

#AFBDE2

Tritanopia (blue-blind)

#00DDD8

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #51d5e1;
/* rgb */ color: rgb(81, 213, 225);
/* oklch */ color: oklch(80.6% 0.114 203.7);

Tailwind

colors: {
  custom: {
    50: '#92e2ea',
    500: '#51d5e1',
    950: '#000000',
  },
}

SCSS

$custom: #51d5e1;
$custom-light: #92e2ea;
$custom-dark: #000000;

JSON

{
  "hex": "#51d5e1",
  "rgb": {
    "r": 81,
    "g": 213,
    "b": 225
  },
  "hsl": {
    "h": 185,
    "s": 70.588,
    "l": 60
  },
  "oklch": {
    "l": 0.80594,
    "c": 0.11439,
    "h": 203.7
  },
  "luminance": 0.54774
}

Semantic roles & 50–950 ramp

primary

#51D5E1

secondary

#A03F36

accent

#493AED

background

#FCFEFE

surface

#F5FCFD

border

#CFD5D5

text

#0E1516

muted

#7F8484

Preview Lab

Preview with #51D5E1

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

Preview Lab → · Contrast checker → · Palette generator →