#51D5CF#51D5CF

#51D5CF is a light, moderate teal. Relative luminance 0.538; OKLCH L 80.0% C 0.114 H 190.9°. Best body text is #000000 at 11.77:1 contrast (WCAG AA passes).

Color values

HEX	#51D5CF
RGB	rgb(81, 213, 207)
HSL	hsl(177, 61%, 58%)
HSV	hsv(177, 62%, 84%)
CMYK	cmyk(62%, 0%, 2.8%, 16.5%)
CIE-LAB	lab(78.37, -36.98, -7.73)
CIE-LCH	lch(78.37, 37.78, 191.81°)
OKLab	oklab(79.98% -0.1123 -0.0216)
OKLCH	oklch(79.98% 0.114 190.9)
XYZ	xyz(38.4450, 53.8387, 67.3852)
Luminance	0.5384 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D5CF #D55157

analogous

#51D58D #51D5CF #5199D5

triadic

#51D5CF #CF51D5 #D5CF51

tetradic

#51D5CF #8D51D5 #D55157 #99D551

square

#51D5CF #8D51D5 #D55157 #99D551

split-complementary

#51D5CF #D55199 #D58D51

monochromatic

#218A85 #2DBCB5 #51D5CF #82E1DD #B4EDEA

Accessibility & contrast

On white

1.78

#51D5CF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.77

#51D5CF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D5CF

11.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D5CF	#FFFFFF	#000000	##000000
##51D5CF	1.00	1.78	11.77	11.77
#FFFFFF	1.78	1.00	21.00	21.00
#000000	11.77	21.00	1.00	1.00
##000000	11.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C9CBCF

Deuteranopia (green-blind)

#B5BCD0

Tritanopia (blue-blind)

#00DBD3

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #51d5cf;
/* rgb */ color: rgb(81, 213, 207);
/* oklch */ color: oklch(80.0% 0.114 190.9);

Tailwind

colors: {
  custom: {
    50: '#91e2dd',
    500: '#51d5cf',
    950: '#000000',
  },
}

SCSS

$custom: #51d5cf;
$custom-light: #91e2dd;
$custom-dark: #000000;

JSON

{
  "hex": "#51d5cf",
  "rgb": {
    "r": 81,
    "g": 213,
    "b": 207
  },
  "hsl": {
    "h": 177.273,
    "s": 61.111,
    "l": 57.647
  },
  "oklch": {
    "l": 0.79977,
    "c": 0.11437,
    "h": 190.9
  },
  "luminance": 0.53843
}

Semantic roles & 50–950 ramp

primary

#51D5CF

secondary

#903A3E

accent

#444BE4

background

#FCFEFE

surface

#F5FCFC

border

#CFD5D5

text

#0E1515

muted

#7F8484

Preview Lab

Preview with #51D5CF

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

Preview Lab → · Contrast checker → · Palette generator →