#51D5E6#51D5E6

#51D5E6 is a light, moderate teal. Relative luminance 0.551; OKLCH L 80.8% C 0.115 H 207.2°. Best body text is #000000 at 12.01:1 contrast (WCAG AA passes).

Color values

HEX	#51D5E6
RGB	rgb(81, 213, 230)
HSL	hsl(187, 75%, 61%)
HSV	hsv(187, 65%, 90%)
CMYK	cmyk(64.8%, 7.4%, 0%, 9.8%)
CIE-LAB	lab(79.07, -30.56, -19.00)
CIE-LCH	lch(79.07, 35.99, 211.87°)
OKLab	oklab(80.78% -0.1027 -0.0527)
OKLCH	oklch(80.78% 0.115 207.2)
XYZ	xyz(41.4644, 55.0464, 83.2873)
Luminance	0.5505 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D5E6 #E66251

analogous

#51E6AC #51D5E6 #518AE6

triadic

#51D5E6 #E651D5 #D5E651

tetradic

#51D5E6 #AC51E6 #E66251 #8AE651

square

#51D5E6 #AC51E6 #E66251 #8AE651

split-complementary

#51D5E6 #E6518A #E6AC51

monochromatic

#1895A5 #1FC5DA #51D5E6 #87E2EE #BCEFF5

Accessibility & contrast

On white

1.75

#51D5E6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.01

#51D5E6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D5E6

12.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D5E6	#FFFFFF	#000000	##000000
##51D5E6	1.00	1.75	12.01	12.01
#FFFFFF	1.75	1.00	21.00	21.00
#000000	12.01	21.00	1.00	1.00
##000000	12.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4CDE7

Deuteranopia (green-blind)

#AEBDE6

Tritanopia (blue-blind)

#00DEDA

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #51d5e6;
/* rgb */ color: rgb(81, 213, 230);
/* oklch */ color: oklch(80.8% 0.115 207.2);

Tailwind

colors: {
  custom: {
    50: '#93e2ee',
    500: '#51d5e6',
    950: '#000000',
  },
}

SCSS

$custom: #51d5e6;
$custom-light: #93e2ee;
$custom-dark: #000000;

JSON

{
  "hex": "#51d5e6",
  "rgb": {
    "r": 81,
    "g": 213,
    "b": 230
  },
  "hsl": {
    "h": 186.846,
    "s": 74.874,
    "l": 60.98
  },
  "oklch": {
    "l": 0.80776,
    "c": 0.11548,
    "h": 207.2
  },
  "luminance": 0.55051
}

Semantic roles & 50–950 ramp

primary

#51D5E6

secondary

#A74134

accent

#250ED7

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0E1516

muted

#7F8485

Preview Lab

Preview with #51D5E6

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

Preview Lab → · Contrast checker → · Palette generator →