#63B0CB#63B0CB

#63B0CB is a light, moderate cyan. Relative luminance 0.380; OKLCH L 71.8% C 0.086 H 222.9°. Best body text is #000000 at 8.60:1 contrast (WCAG AA passes).

Color values

HEX	#63B0CB
RGB	rgb(99, 176, 203)
HSL	hsl(196, 50%, 59%)
HSV	hsv(196, 51%, 80%)
CMYK	cmyk(51.2%, 13.3%, 0%, 20.4%)
CIE-LAB	lab(68.03, -16.38, -21.04)
CIE-LCH	lch(68.03, 26.67, 232.10°)
OKLab	oklab(71.78% -0.0627 -0.0583)
OKLCH	oklch(71.78% 0.086 222.9)
XYZ	xyz(31.4463, 38.0125, 62.1683)
Luminance	0.3801 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B0CB #CB7E63

analogous

#63CBB2 #63B0CB #637CCB

triadic

#63B0CB #CB63B0 #B0CB63

tetradic

#63B0CB #B263CB #CB7E63 #7CCB63

square

#63B0CB #B263CB #CB7E63 #7CCB63

split-complementary

#63B0CB #CB637C #CBB263

monochromatic

#2D6F87 #3C95B5 #63B0CB #91C7DA #BFDEEA

Accessibility & contrast

On white

2.44

#63B0CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.60

#63B0CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B0CB

8.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B0CB	#FFFFFF	#000000	##000000
##63B0CB	1.00	2.44	8.60	8.60
#FFFFFF	2.44	1.00	21.00	21.00
#000000	8.60	21.00	1.00	1.00
##000000	8.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0ACCC

Deuteranopia (green-blind)

#91A1CB

Tritanopia (blue-blind)

#23B9B9

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #63b0cb;
/* rgb */ color: rgb(99, 176, 203);
/* oklch */ color: oklch(71.8% 0.086 222.9);

Tailwind

colors: {
  custom: {
    50: '#96c7da',
    500: '#63b0cb',
    950: '#000000',
  },
}

SCSS

$custom: #63b0cb;
$custom-light: #96c7da;
$custom-dark: #000000;

JSON

{
  "hex": "#63b0cb",
  "rgb": {
    "r": 99,
    "g": 176,
    "b": 203
  },
  "hsl": {
    "h": 195.577,
    "s": 50,
    "l": 59.216
  },
  "oklch": {
    "l": 0.71784,
    "c": 0.0856,
    "h": 222.9
  },
  "luminance": 0.38015
}

Semantic roles & 50–950 ramp

primary

#63B0CB

secondary

#D9BBB1

accent

#724EDA

background

#F9FCFD

surface

#F2F8FA

border

#CCD1D3

text

#0E1315

muted

#7E8283

Preview Lab

Preview with #63B0CB

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

Preview Lab → · Contrast checker → · Palette generator →