#51DDE5#51DDE5

#51DDE5 is a very light, moderate teal. Relative luminance 0.591; OKLCH L 82.6% C 0.119 H 200.5°. Best body text is #000000 at 12.82:1 contrast (WCAG AA passes).

Color values

HEX	#51DDE5
RGB	rgb(81, 221, 229)
HSL	hsl(183, 74%, 61%)
HSV	hsv(183, 65%, 90%)
CMYK	cmyk(64.6%, 3.5%, 0%, 10.2%)
CIE-LAB	lab(81.35, -34.65, -15.02)
CIE-LCH	lch(81.35, 37.76, 203.44°)
OKLab	oklab(82.61% -0.1111 -0.0416)
OKLCH	oklch(82.61% 0.119 200.5)
XYZ	xyz(43.3865, 59.1146, 83.2372)
Luminance	0.5912 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DDE5 #E55951

analogous

#51E5A3 #51DDE5 #5193E5

triadic

#51DDE5 #E551DD #DDE551

tetradic

#51DDE5 #A351E5 #E55951 #93E551

square

#51DDE5 #A351E5 #E55951 #93E551

split-complementary

#51DDE5 #E55193 #E5A351

monochromatic

#189CA3 #20CFD8 #51DDE5 #86E7ED #BBF2F5

Accessibility & contrast

On white

1.64

#51DDE5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.82

#51DDE5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DDE5

12.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DDE5	#FFFFFF	#000000	##000000
##51DDE5	1.00	1.64	12.82	12.82
#FFFFFF	1.64	1.00	21.00	21.00
#000000	12.82	21.00	1.00	1.00
##000000	12.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CDD4E6

Deuteranopia (green-blind)

#B7C3E6

Tritanopia (blue-blind)

#00E5DF

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #51dde5;
/* rgb */ color: rgb(81, 221, 229);
/* oklch */ color: oklch(82.6% 0.119 200.5);

Tailwind

colors: {
  custom: {
    50: '#93e8ed',
    500: '#51dde5',
    950: '#000000',
  },
}

SCSS

$custom: #51dde5;
$custom-light: #93e8ed;
$custom-dark: #000000;

JSON

{
  "hex": "#51dde5",
  "rgb": {
    "r": 81,
    "g": 221,
    "b": 229
  },
  "hsl": {
    "h": 183.243,
    "s": 74,
    "l": 60.784
  },
  "oklch": {
    "l": 0.82611,
    "c": 0.11868,
    "h": 200.5
  },
  "luminance": 0.59119
}

Semantic roles & 50–950 ramp

primary

#51DDE5

secondary

#A63B35

accent

#1A0FD6

background

#FCFEFE

surface

#F5FCFD

border

#CFD5D5

text

#0F1616

muted

#808484

Preview Lab

Preview with #51DDE5

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

Preview Lab → · Contrast checker → · Palette generator →