#63B1DB#63B1DB

#63B1DB is a light, moderate cyan. Relative luminance 0.392; OKLCH L 72.7% C 0.098 H 233.9°. Best body text is #000000 at 8.84:1 contrast (WCAG AA passes).

Color values

HEX	#63B1DB
RGB	rgb(99, 177, 219)
HSL	hsl(201, 63%, 62%)
HSV	hsv(201, 55%, 86%)
CMYK	cmyk(54.8%, 19.2%, 0%, 14.1%)
CIE-LAB	lab(68.90, -12.25, -28.50)
CIE-LCH	lch(68.90, 31.02, 246.75°)
OKLab	oklab(72.67% -0.0579 -0.0794)
OKLCH	oklch(72.67% 0.098 233.9)
XYZ	xyz(33.6491, 39.2084, 72.7988)
Luminance	0.3921 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B1DB #DB8D63

analogous

#63DBC9 #63B1DB #6375DB

triadic

#63B1DB #DB63B1 #B1DB63

tetradic

#63B1DB #C963DB #DB8D63 #75DB63

square

#63B1DB #C963DB #DB8D63 #75DB63

split-complementary

#63B1DB #DB6375 #DBC963

monochromatic

#25749F #3198D0 #63B1DB #95CAE6 #C6E3F2

Accessibility & contrast

On white

2.37

#63B1DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.84

#63B1DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B1DB

8.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B1DB	#FFFFFF	#000000	##000000
##63B1DB	1.00	2.37	8.84	8.84
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.84	21.00	1.00	1.00
##000000	8.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DAFDD

Deuteranopia (green-blind)

#8CA3DA

Tritanopia (blue-blind)

#00BCBF

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #63b1db;
/* rgb */ color: rgb(99, 177, 219);
/* oklch */ color: oklch(72.7% 0.098 233.9);

Tailwind

colors: {
  custom: {
    50: '#98c8e6',
    500: '#63b1db',
    950: '#000000',
  },
}

SCSS

$custom: #63b1db;
$custom-light: #98c8e6;
$custom-dark: #000000;

JSON

{
  "hex": "#63b1db",
  "rgb": {
    "r": 99,
    "g": 177,
    "b": 219
  },
  "hsl": {
    "h": 201,
    "s": 62.5,
    "l": 62.353
  },
  "oklch": {
    "l": 0.72671,
    "c": 0.09833,
    "h": 233.9
  },
  "luminance": 0.39211
}

Semantic roles & 50–950 ramp

primary

#63B1DB

secondary

#E3C6B7

accent

#591BCA

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #63B1DB

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

Preview Lab → · Contrast checker → · Palette generator →