#51BBBB#51BBBB

#51BBBB is a light, moderate teal. Relative luminance 0.409; OKLCH L 73.1% C 0.097 H 195.2°. Best body text is #000000 at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#51BBBB
RGB	rgb(81, 187, 187)
HSL	hsl(180, 44%, 53%)
HSV	hsv(180, 57%, 73%)
CMYK	cmyk(56.7%, 0%, 0%, 26.7%)
CIE-LAB	lab(70.09, -30.15, -9.20)
CIE-LCH	lch(70.09, 31.52, 196.97°)
OKLab	oklab(73.08% -0.0936 -0.0255)
OKLCH	oklch(73.08% 0.097 195.2)
XYZ	xyz(30.1295, 40.8748, 53.3059)
Luminance	0.4088 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BBBB #BB5151

analogous

#51BB86 #51BBBB #5186BB

triadic

#51BBBB #BB51BB #BBBB51

tetradic

#51BBBB #8651BB #BB5151 #86BB51

square

#51BBBB #8651BB #BB5151 #86BB51

split-complementary

#51BBBB #BB5186 #BB8651

monochromatic

#296969 #3A9595 #51BBBB #7DCCCC #A9DDDD

Accessibility & contrast

On white

2.29

#51BBBB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.18

#51BBBB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BBBB

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BBBB	#FFFFFF	#000000	##000000
##51BBBB	1.00	2.29	9.18	9.18
#FFFFFF	2.29	1.00	21.00	21.00
#000000	9.18	21.00	1.00	1.00
##000000	9.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B0B3BB

Deuteranopia (green-blind)

#9FA6BC

Tritanopia (blue-blind)

#00C0BB

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #51bbbb;
/* rgb */ color: rgb(81, 187, 187);
/* oklch */ color: oklch(73.1% 0.097 195.2);

Tailwind

colors: {
  custom: {
    50: '#8dd0cf',
    500: '#51bbbb',
    950: '#000000',
  },
}

SCSS

$custom: #51bbbb;
$custom-light: #8dd0cf;
$custom-dark: #000000;

JSON

{
  "hex": "#51bbbb",
  "rgb": {
    "r": 81,
    "g": 187,
    "b": 187
  },
  "hsl": {
    "h": 180,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.73083,
    "c": 0.09698,
    "h": 195.2
  },
  "luminance": 0.40878
}

Semantic roles & 50–950 ramp

primary

#51BBBB

secondary

#CB9D9D

accent

#5454D4

background

#F9FCFC

surface

#F1F9F9

border

#CBD2D2

text

#0D1413

muted

#7E8282

Preview Lab

Preview with #51BBBB

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

Preview Lab → · Contrast checker → · Palette generator →