#63A9DB#63A9DB

#63A9DB is a light, moderate cyan. Relative luminance 0.361; OKLCH L 70.9% C 0.102 H 241.3°. Best body text is #000000 at 8.23:1 contrast (WCAG AA passes).

Color values

HEX	#63A9DB
RGB	rgb(99, 169, 219)
HSL	hsl(205, 63%, 62%)
HSV	hsv(205, 55%, 86%)
CMYK	cmyk(54.8%, 22.8%, 0%, 14.1%)
CIE-LAB	lab(66.63, -7.90, -32.01)
CIE-LCH	lch(66.63, 32.97, 256.14°)
OKLab	oklab(70.87% -0.049 -0.0895)
OKLCH	oklch(70.87% 0.102 241.3)
XYZ	xyz(32.1151, 36.1403, 72.2875)
Luminance	0.3614 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A9DB #DB9563

analogous

#63DBD1 #63A9DB #636DDB

triadic

#63A9DB #DB63A9 #A9DB63

tetradic

#63A9DB #D163DB #DB9563 #6DDB63

square

#63A9DB #D163DB #DB9563 #6DDB63

split-complementary

#63A9DB #DB636D #DBD163

monochromatic

#256C9F #318ED0 #63A9DB #95C4E6 #C6E0F2

Accessibility & contrast

On white

2.55

#63A9DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.23

#63A9DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A9DB

8.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A9DB	#FFFFFF	#000000	##000000
##63A9DB	1.00	2.55	8.23	8.23
#FFFFFF	2.55	1.00	21.00	21.00
#000000	8.23	21.00	1.00	1.00
##000000	8.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#93A9DD

Deuteranopia (green-blind)

#839DDA

Tritanopia (blue-blind)

#00B5BA

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #63a9db;
/* rgb */ color: rgb(99, 169, 219);
/* oklch */ color: oklch(70.9% 0.102 241.3);

Tailwind

colors: {
  custom: {
    50: '#97c2e6',
    500: '#63a9db',
    950: '#000000',
  },
}

SCSS

$custom: #63a9db;
$custom-light: #97c2e6;
$custom-dark: #000000;

JSON

{
  "hex": "#63a9db",
  "rgb": {
    "r": 99,
    "g": 169,
    "b": 219
  },
  "hsl": {
    "h": 205,
    "s": 62.5,
    "l": 62.353
  },
  "oklch": {
    "l": 0.70868,
    "c": 0.10206,
    "h": 241.3
  },
  "luminance": 0.36143
}

Semantic roles & 50–950 ramp

primary

#63A9DB

secondary

#E3C9B7

accent

#641BCA

background

#F9FBFE

surface

#F2F7FC

border

#CCD0D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #63A9DB

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

Preview Lab → · Contrast checker → · Palette generator →