#51D5E5#51D5E5

#51D5E5 is a light, moderate teal. Relative luminance 0.550; OKLCH L 80.7% C 0.115 H 206.5°. Best body text is #000000 at 12.00:1 contrast (WCAG AA passes).

Color values

HEX	#51D5E5
RGB	rgb(81, 213, 229)
HSL	hsl(186, 74%, 61%)
HSV	hsv(186, 65%, 90%)
CMYK	cmyk(64.6%, 7%, 0%, 10.2%)
CIE-LAB	lab(79.04, -30.85, -18.51)
CIE-LCH	lch(79.04, 35.98, 210.97°)
OKLab	oklab(80.74% -0.1031 -0.0513)
OKLCH	oklch(80.74% 0.115 206.5)
XYZ	xyz(41.3244, 54.9904, 82.5499)
Luminance	0.5500 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D5E5 #E56151

analogous

#51E5AB #51D5E5 #518BE5

triadic

#51D5E5 #E551D5 #D5E551

tetradic

#51D5E5 #AB51E5 #E56151 #8BE551

square

#51D5E5 #AB51E5 #E56151 #8BE551

split-complementary

#51D5E5 #E5518B #E5AB51

monochromatic

#1894A3 #20C5D8 #51D5E5 #86E2ED #BBEFF5

Accessibility & contrast

On white

1.75

#51D5E5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.00

#51D5E5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D5E5

12.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D5E5	#FFFFFF	#000000	##000000
##51D5E5	1.00	1.75	12.00	12.00
#FFFFFF	1.75	1.00	21.00	21.00
#000000	12.00	21.00	1.00	1.00
##000000	12.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4CDE6

Deuteranopia (green-blind)

#AEBDE5

Tritanopia (blue-blind)

#00DEDA

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #51d5e5;
/* rgb */ color: rgb(81, 213, 229);
/* oklch */ color: oklch(80.7% 0.115 206.5);

Tailwind

colors: {
  custom: {
    50: '#93e2ed',
    500: '#51d5e5',
    950: '#000000',
  },
}

SCSS

$custom: #51d5e5;
$custom-light: #93e2ed;
$custom-dark: #000000;

JSON

{
  "hex": "#51d5e5",
  "rgb": {
    "r": 81,
    "g": 213,
    "b": 229
  },
  "hsl": {
    "h": 186.486,
    "s": 74,
    "l": 60.784
  },
  "oklch": {
    "l": 0.80739,
    "c": 0.11522,
    "h": 206.5
  },
  "luminance": 0.54995
}

Semantic roles & 50–950 ramp

primary

#51D5E5

secondary

#A64135

accent

#250FD6

background

#FCFEFE

surface

#F5FCFD

border

#CFD5D5

text

#0E1516

muted

#7F8484

Preview Lab

Preview with #51D5E5

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

Preview Lab → · Contrast checker → · Palette generator →