#51EFB9#51EFB9

#51EFB9 is a very light, vivid teal. Relative luminance 0.670; OKLCH L 85.6% C 0.153 H 166.2°. Best body text is #000000 at 14.40:1 contrast (WCAG AA passes).

Color values

HEX	#51EFB9
RGB	rgb(81, 239, 185)
HSL	hsl(159, 83%, 63%)
HSV	hsv(159, 66%, 94%)
CMYK	cmyk(66.1%, 0%, 22.6%, 6.3%)
CIE-LAB	lab(85.49, -53.60, 14.23)
CIE-LCH	lch(85.49, 55.46, 165.14°)
OKLab	oklab(85.6% -0.1484 0.0364)
OKLCH	oklch(85.6% 0.153 166.2)
XYZ	xyz(43.0122, 66.9804, 56.5512)
Luminance	0.6698 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51EFB9 #EF5187

analogous

#51EF6A #51EFB9 #51D6EF

triadic

#51EFB9 #B951EF #EFB951

tetradic

#51EFB9 #6A51EF #EF5187 #D6EF51

square

#51EFB9 #6A51EF #EF5187 #D6EF51

split-complementary

#51EFB9 #EF51D6 #EF6A51

monochromatic

#11B57D #19EAA2 #51EFB9 #89F4D0 #C1F9E6

Accessibility & contrast

On white

1.46

#51EFB9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.40

#51EFB9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51EFB9

14.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51EFB9	#FFFFFF	#000000	##000000
##51EFB9	1.00	1.46	14.40	14.40
#FFFFFF	1.46	1.00	21.00	21.00
#000000	14.40	21.00	1.00	1.00
##000000	14.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EADFB6

Deuteranopia (green-blind)

#D5CFBD

Tritanopia (blue-blind)

#00F0E0

Achromatopsia (no color)

#D6D6D6

Design tokens & code

CSS

--color: #51efb9;
/* rgb */ color: rgb(81, 239, 185);
/* oklch */ color: oklch(85.6% 0.153 166.2);

Tailwind

colors: {
  custom: {
    50: '#93f5ce',
    500: '#51efb9',
    950: '#000000',
  },
}

SCSS

$custom: #51efb9;
$custom-light: #93f5ce;
$custom-dark: #000000;

JSON

{
  "hex": "#51efb9",
  "rgb": {
    "r": 81,
    "g": 239,
    "b": 185
  },
  "hsl": {
    "h": 159.494,
    "s": 83.158,
    "l": 62.745
  },
  "oklch": {
    "l": 0.85604,
    "c": 0.15278,
    "h": 166.2
  },
  "luminance": 0.66985
}

Semantic roles & 50–950 ramp

primary

#51EFB9

secondary

#B5305D

accent

#0650E0

background

#FCFFFE

surface

#F5FEFA

border

#CFD6D3

text

#0E1713

muted

#7F8583

Preview Lab

Preview with #51EFB9

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

Preview Lab → · Contrast checker → · Palette generator →