#63B4DB#63B4DB

#63B4DB is a light, moderate cyan. Relative luminance 0.404; OKLCH L 73.4% C 0.097 H 231.0°. Best body text is #000000 at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#63B4DB
RGB	rgb(99, 180, 219)
HSL	hsl(200, 63%, 62%)
HSV	hsv(200, 55%, 86%)
CMYK	cmyk(54.8%, 17.8%, 0%, 14.1%)
CIE-LAB	lab(69.76, -13.85, -27.19)
CIE-LCH	lch(69.76, 30.51, 243.00°)
OKLab	oklab(73.35% -0.0613 -0.0757)
OKLCH	oklch(73.35% 0.097 231)
XYZ	xyz(34.2482, 40.4066, 72.9985)
Luminance	0.4041 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B4DB #DB8A63

analogous

#63DBC6 #63B4DB #6378DB

triadic

#63B4DB #DB63B4 #B4DB63

tetradic

#63B4DB #C663DB #DB8A63 #78DB63

square

#63B4DB #C663DB #DB8A63 #78DB63

split-complementary

#63B4DB #DB6378 #DBC663

monochromatic

#25779F #319CD0 #63B4DB #95CCE6 #C6E4F2

Accessibility & contrast

On white

2.31

#63B4DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.08

#63B4DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B4DB

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B4DB	#FFFFFF	#000000	##000000
##63B4DB	1.00	2.31	9.08	9.08
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.08	21.00	1.00	1.00
##000000	9.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1B2DD

Deuteranopia (green-blind)

#90A5DA

Tritanopia (blue-blind)

#00BFC1

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #63b4db;
/* rgb */ color: rgb(99, 180, 219);
/* oklch */ color: oklch(73.4% 0.097 231.0);

Tailwind

colors: {
  custom: {
    50: '#98cae6',
    500: '#63b4db',
    950: '#000000',
  },
}

SCSS

$custom: #63b4db;
$custom-light: #98cae6;
$custom-dark: #000000;

JSON

{
  "hex": "#63b4db",
  "rgb": {
    "r": 99,
    "g": 180,
    "b": 219
  },
  "hsl": {
    "h": 199.5,
    "s": 62.5,
    "l": 62.353
  },
  "oklch": {
    "l": 0.73352,
    "c": 0.09739,
    "h": 231
  },
  "luminance": 0.4041
}

Semantic roles & 50–950 ramp

primary

#63B4DB

secondary

#E3C5B7

accent

#541BCA

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #63B4DB

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

Preview Lab → · Contrast checker → · Palette generator →