#63ADDD#63ADDD

#63ADDD is a light, moderate cyan. Relative luminance 0.378; OKLCH L 71.9% C 0.102 H 238.8°. Best body text is #000000 at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#63ADDD
RGB	rgb(99, 173, 221)
HSL	hsl(204, 64%, 63%)
HSV	hsv(204, 55%, 87%)
CMYK	cmyk(55.2%, 21.7%, 0%, 13.3%)
CIE-LAB	lab(67.84, -9.48, -31.23)
CIE-LCH	lch(67.84, 32.64, 253.11°)
OKLab	oklab(71.86% -0.0528 -0.0873)
OKLCH	oklch(71.86% 0.102 238.8)
XYZ	xyz(33.1355, 37.7574, 73.9343)
Luminance	0.3776 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63ADDD #DD9363

analogous

#63DDD0 #63ADDD #6370DD

triadic

#63ADDD #DD63AD #ADDD63

tetradic

#63ADDD #D063DD #DD9363 #70DD63

square

#63ADDD #D063DD #DD9363 #70DD63

split-complementary

#63ADDD #DD6370 #DDD063

monochromatic

#2370A2 #3193D2 #63ADDD #95C7E8 #C7E2F3

Accessibility & contrast

On white

2.46

#63ADDD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.55

#63ADDD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63ADDD

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63ADDD	#FFFFFF	#000000	##000000
##63ADDD	1.00	2.46	8.55	8.55
#FFFFFF	2.46	1.00	21.00	21.00
#000000	8.55	21.00	1.00	1.00
##000000	8.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97ACDF

Deuteranopia (green-blind)

#87A0DC

Tritanopia (blue-blind)

#00B9BD

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #63addd;
/* rgb */ color: rgb(99, 173, 221);
/* oklch */ color: oklch(71.9% 0.102 238.8);

Tailwind

colors: {
  custom: {
    50: '#98c5e7',
    500: '#63addd',
    950: '#000000',
  },
}

SCSS

$custom: #63addd;
$custom-light: #98c5e7;
$custom-dark: #000000;

JSON

{
  "hex": "#63addd",
  "rgb": {
    "r": 99,
    "g": 173,
    "b": 221
  },
  "hsl": {
    "h": 203.607,
    "s": 64.211,
    "l": 62.745
  },
  "oklch": {
    "l": 0.71856,
    "c": 0.10201,
    "h": 238.8
  },
  "luminance": 0.3776
}

Semantic roles & 50–950 ramp

primary

#63ADDD

secondary

#E4C9B8

accent

#6019CC

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #63ADDD

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

Preview Lab → · Contrast checker → · Palette generator →