#51D8F0#51D8F0

#51D8F0 is a light, moderate teal. Relative luminance 0.572; OKLCH L 81.8% C 0.119 H 211.6°. Best body text is #000000 at 12.43:1 contrast (WCAG AA passes).

Color values

HEX	#51D8F0
RGB	rgb(81, 216, 240)
HSL	hsl(189, 84%, 63%)
HSV	hsv(189, 66%, 94%)
CMYK	cmyk(66.3%, 10%, 0%, 5.9%)
CIE-LAB	lab(80.26, -29.10, -22.52)
CIE-LCH	lch(80.26, 36.80, 217.74°)
OKLab	oklab(81.85% -0.1018 -0.0626)
OKLCH	oklch(81.85% 0.119 211.6)
XYZ	xyz(43.6708, 57.1475, 91.1502)
Luminance	0.5715 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D8F0 #F06951

analogous

#51F0B9 #51D8F0 #5188F0

triadic

#51D8F0 #F051D8 #D8F051

tetradic

#51D8F0 #B951F0 #F06951 #88F051

square

#51D8F0 #B951F0 #F06951 #88F051

split-complementary

#51D8F0 #F05188 #F0B951

monochromatic

#109EB7 #19CBEB #51D8F0 #89E5F5 #C2F1FA

Accessibility & contrast

On white

1.69

#51D8F0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.43

#51D8F0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D8F0

12.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D8F0	#FFFFFF	#000000	##000000
##51D8F0	1.00	1.69	12.43	12.43
#FFFFFF	1.69	1.00	21.00	21.00
#000000	12.43	21.00	1.00	1.00
##000000	12.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5D1F1

Deuteranopia (green-blind)

#AEC0F0

Tritanopia (blue-blind)

#00E2DF

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #51d8f0;
/* rgb */ color: rgb(81, 216, 240);
/* oklch */ color: oklch(81.8% 0.119 211.6);

Tailwind

colors: {
  custom: {
    50: '#94e4f5',
    500: '#51d8f0',
    950: '#000000',
  },
}

SCSS

$custom: #51d8f0;
$custom-light: #94e4f5;
$custom-dark: #000000;

JSON

{
  "hex": "#51d8f0",
  "rgb": {
    "r": 81,
    "g": 216,
    "b": 240
  },
  "hsl": {
    "h": 189.057,
    "s": 84.127,
    "l": 62.941
  },
  "oklch": {
    "l": 0.81847,
    "c": 0.11948,
    "h": 211.6
  },
  "luminance": 0.57152
}

Semantic roles & 50–950 ramp

primary

#51D8F0

secondary

#B6432F

accent

#2605E1

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #51D8F0

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

Preview Lab → · Contrast checker → · Palette generator →