#51BBBA#51BBBA

#51BBBA is a light, moderate teal. Relative luminance 0.408; OKLCH L 73.0% C 0.097 H 194.4°. Best body text is #000000 at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#51BBBA
RGB	rgb(81, 187, 186)
HSL	hsl(179, 44%, 53%)
HSV	hsv(179, 57%, 73%)
CMYK	cmyk(56.7%, 0%, 0.5%, 26.7%)
CIE-LAB	lab(70.06, -30.42, -8.70)
CIE-LCH	lch(70.06, 31.64, 195.95°)
OKLab	oklab(73.05% -0.094 -0.0241)
OKLCH	oklch(73.05% 0.097 194.4)
XYZ	xyz(30.0228, 40.8321, 52.7440)
Luminance	0.4083 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BBBA #BB5152

analogous

#51BB85 #51BBBA #5187BB

triadic

#51BBBA #BA51BB #BBBA51

tetradic

#51BBBA #8551BB #BB5152 #87BB51

square

#51BBBA #8551BB #BB5152 #87BB51

split-complementary

#51BBBA #BB5187 #BB8551

monochromatic

#296968 #3A9594 #51BBBA #7DCCCB #A9DDDD

Accessibility & contrast

On white

2.29

#51BBBA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.17

#51BBBA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BBBA

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BBBA	#FFFFFF	#000000	##000000
##51BBBA	1.00	2.29	9.17	9.17
#FFFFFF	2.29	1.00	21.00	21.00
#000000	9.17	21.00	1.00	1.00
##000000	9.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B0B3BA

Deuteranopia (green-blind)

#9FA6BB

Tritanopia (blue-blind)

#00C0BA

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #51bbba;
/* rgb */ color: rgb(81, 187, 186);
/* oklch */ color: oklch(73.0% 0.097 194.4);

Tailwind

colors: {
  custom: {
    50: '#8dd0ce',
    500: '#51bbba',
    950: '#000000',
  },
}

SCSS

$custom: #51bbba;
$custom-light: #8dd0ce;
$custom-dark: #000000;

JSON

{
  "hex": "#51bbba",
  "rgb": {
    "r": 81,
    "g": 187,
    "b": 186
  },
  "hsl": {
    "h": 179.434,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.73049,
    "c": 0.09704,
    "h": 194.4
  },
  "luminance": 0.40835
}

Semantic roles & 50–950 ramp

primary

#51BBBA

secondary

#CB9D9D

accent

#5455D4

background

#F9FCFC

surface

#F1F9F9

border

#CBD2D2

text

#0D1413

muted

#7E8282

Preview Lab

Preview with #51BBBA

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

Preview Lab → · Contrast checker → · Palette generator →