#51D1E5#51D1E5

#51D1E5 is a light, moderate teal. Relative luminance 0.530; OKLCH L 79.8% C 0.114 H 209.6°. Best body text is #000000 at 11.60:1 contrast (WCAG AA passes).

Color values

HEX	#51D1E5
RGB	rgb(81, 209, 229)
HSL	hsl(188, 74%, 61%)
HSV	hsv(188, 65%, 90%)
CMYK	cmyk(64.6%, 8.7%, 0%, 10.2%)
CIE-LAB	lab(77.88, -28.92, -20.27)
CIE-LCH	lch(77.88, 35.31, 215.03°)
OKLab	oklab(79.81% -0.0991 -0.0563)
OKLCH	oklch(79.81% 0.114 209.6)
XYZ	xyz(40.3307, 53.0030, 82.2186)
Luminance	0.5301 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D1E5 #E56551

analogous

#51E5AF #51D1E5 #5187E5

triadic

#51D1E5 #E551D1 #D1E551

tetradic

#51D1E5 #AF51E5 #E56551 #87E551

square

#51D1E5 #AF51E5 #E56551 #87E551

split-complementary

#51D1E5 #E55187 #E5AF51

monochromatic

#1890A3 #20C0D8 #51D1E5 #86DFED #BBEDF5

Accessibility & contrast

On white

1.81

#51D1E5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.60

#51D1E5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D1E5

11.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D1E5	#FFFFFF	#000000	##000000
##51D1E5	1.00	1.81	11.60	11.60
#FFFFFF	1.81	1.00	21.00	21.00
#000000	11.60	21.00	1.00	1.00
##000000	11.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BFCAE6

Deuteranopia (green-blind)

#AABAE5

Tritanopia (blue-blind)

#00DAD7

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #51d1e5;
/* rgb */ color: rgb(81, 209, 229);
/* oklch */ color: oklch(79.8% 0.114 209.6);

Tailwind

colors: {
  custom: {
    50: '#92dfed',
    500: '#51d1e5',
    950: '#000000',
  },
}

SCSS

$custom: #51d1e5;
$custom-light: #92dfed;
$custom-dark: #000000;

JSON

{
  "hex": "#51d1e5",
  "rgb": {
    "r": 81,
    "g": 209,
    "b": 229
  },
  "hsl": {
    "h": 188.108,
    "s": 74,
    "l": 60.784
  },
  "oklch": {
    "l": 0.79805,
    "c": 0.11398,
    "h": 209.6
  },
  "luminance": 0.53007
}

Semantic roles & 50–950 ramp

primary

#51D1E5

secondary

#A64435

accent

#2A0FD6

background

#FCFEFE

surface

#F5FCFD

border

#CFD5D5

text

#0E1516

muted

#7F8484

Preview Lab

Preview with #51D1E5

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

Preview Lab → · Contrast checker → · Palette generator →