#51D8E5#51D8E5

#51D8E5 is a light, moderate teal. Relative luminance 0.565; OKLCH L 81.4% C 0.116 H 204.2°. Best body text is #000000 at 12.30:1 contrast (WCAG AA passes).

Color values

HEX	#51D8E5
RGB	rgb(81, 216, 229)
HSL	hsl(185, 74%, 61%)
HSV	hsv(185, 65%, 90%)
CMYK	cmyk(64.6%, 5.7%, 0%, 10.2%)
CIE-LAB	lab(79.91, -32.29, -17.20)
CIE-LCH	lch(79.91, 36.58, 208.05°)
OKLab	oklab(81.44% -0.1061 -0.0477)
OKLCH	oklch(81.44% 0.116 204.2)
XYZ	xyz(42.0860, 56.5136, 82.8037)
Luminance	0.5652 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D8E5 #E55E51

analogous

#51E5A8 #51D8E5 #518EE5

triadic

#51D8E5 #E551D8 #D8E551

tetradic

#51D8E5 #A851E5 #E55E51 #8EE551

square

#51D8E5 #A851E5 #E55E51 #8EE551

split-complementary

#51D8E5 #E5518E #E5A851

monochromatic

#1897A3 #20C8D8 #51D8E5 #86E4ED #BBF0F5

Accessibility & contrast

On white

1.71

#51D8E5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.30

#51D8E5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D8E5

12.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D8E5	#FFFFFF	#000000	##000000
##51D8E5	1.00	1.71	12.30	12.30
#FFFFFF	1.71	1.00	21.00	21.00
#000000	12.30	21.00	1.00	1.00
##000000	12.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C8CFE6

Deuteranopia (green-blind)

#B2BFE6

Tritanopia (blue-blind)

#00E0DC

Achromatopsia (no color)

#C6C6C6

Design tokens & code

CSS

--color: #51d8e5;
/* rgb */ color: rgb(81, 216, 229);
/* oklch */ color: oklch(81.4% 0.116 204.2);

Tailwind

colors: {
  custom: {
    50: '#93e4ed',
    500: '#51d8e5',
    950: '#000000',
  },
}

SCSS

$custom: #51d8e5;
$custom-light: #93e4ed;
$custom-dark: #000000;

JSON

{
  "hex": "#51d8e5",
  "rgb": {
    "r": 81,
    "g": 216,
    "b": 229
  },
  "hsl": {
    "h": 185.27,
    "s": 74,
    "l": 60.784
  },
  "oklch": {
    "l": 0.8144,
    "c": 0.11637,
    "h": 204.2
  },
  "luminance": 0.56518
}

Semantic roles & 50–950 ramp

primary

#51D8E5

secondary

#A63F35

accent

#210FD6

background

#FCFEFE

surface

#F5FCFD

border

#CFD5D5

text

#0E1516

muted

#7F8484

Preview Lab

Preview with #51D8E5

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

Preview Lab → · Contrast checker → · Palette generator →