#51BBBF#51BBBF

#51BBBF is a light, moderate teal. Relative luminance 0.411; OKLCH L 73.2% C 0.097 H 198.7°. Best body text is #000000 at 9.21:1 contrast (WCAG AA passes).

Color values

HEX	#51BBBF
RGB	rgb(81, 187, 191)
HSL	hsl(182, 46%, 53%)
HSV	hsv(182, 58%, 75%)
CMYK	cmyk(57.6%, 2.1%, 0%, 25.1%)
CIE-LAB	lab(70.21, -29.04, -11.21)
CIE-LCH	lch(70.21, 31.13, 201.11°)
OKLab	oklab(73.22% -0.0919 -0.031)
OKLCH	oklch(73.22% 0.097 198.7)
XYZ	xyz(30.5637, 41.0485, 55.5926)
Luminance	0.4105 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BBBF #BF5551

analogous

#51BF8C #51BBBF #5184BF

triadic

#51BBBF #BF51BB #BBBF51

tetradic

#51BBBF #8C51BF #BF5551 #84BF51

square

#51BBBF #8C51BF #BF5551 #84BF51

split-complementary

#51BBBF #BF5184 #BF8C51

monochromatic

#286B6D #39979A #51BBBF #7ECCCF #AADEE0

Accessibility & contrast

On white

2.28

#51BBBF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.21

#51BBBF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BBBF

9.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BBBF	#FFFFFF	#000000	##000000
##51BBBF	1.00	2.28	9.21	9.21
#FFFFFF	2.28	1.00	21.00	21.00
#000000	9.21	21.00	1.00	1.00
##000000	9.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AFB3BF

Deuteranopia (green-blind)

#9DA6C0

Tritanopia (blue-blind)

#00C1BC

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #51bbbf;
/* rgb */ color: rgb(81, 187, 191);
/* oklch */ color: oklch(73.2% 0.097 198.7);

Tailwind

colors: {
  custom: {
    50: '#8dd0d2',
    500: '#51bbbf',
    950: '#000000',
  },
}

SCSS

$custom: #51bbbf;
$custom-light: #8dd0d2;
$custom-dark: #000000;

JSON

{
  "hex": "#51bbbf",
  "rgb": {
    "r": 81,
    "g": 187,
    "b": 191
  },
  "hsl": {
    "h": 182.182,
    "s": 46.218,
    "l": 53.333
  },
  "oklch": {
    "l": 0.73221,
    "c": 0.09696,
    "h": 198.7
  },
  "luminance": 0.41052
}

Semantic roles & 50–950 ramp

primary

#51BBBF

secondary

#CEA09E

accent

#5752D6

background

#F9FCFC

surface

#F1F9F9

border

#CBD2D2

text

#0D1414

muted

#7E8282

Preview Lab

Preview with #51BBBF

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

Preview Lab → · Contrast checker → · Palette generator →