#63A9F0#63A9F0

#63A9F0 is a light, vivid cyan. Relative luminance 0.373; OKLCH L 71.9% C 0.126 H 250.3°. Best body text is #000000 at 8.46:1 contrast (WCAG AA passes).

Color values

HEX	#63A9F0
RGB	rgb(99, 169, 240)
HSL	hsl(210, 82%, 66%)
HSV	hsv(210, 59%, 94%)
CMYK	cmyk(58.8%, 29.6%, 0%, 5.9%)
CIE-LAB	lab(67.51, -1.40, -42.15)
CIE-LCH	lch(67.51, 42.17, 268.10°)
OKLab	oklab(71.86% -0.0425 -0.1188)
OKLCH	oklch(71.86% 0.126 250.3)
XYZ	xyz(35.0560, 37.3167, 87.7766)
Luminance	0.3732 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A9F0 #F0AA63

analogous

#63EFF0 #63A9F0 #6463F0

triadic

#63A9F0 #F063A9 #A9F063

tetradic

#63A9F0 #F063EF #F0AA63 #63F064

square

#63A9F0 #F063EF #F0AA63 #63F064

split-complementary

#63A9F0 #F06463 #EFF063

monochromatic

#136CC6 #2B8AEB #63A9F0 #9BC8F5 #D3E7FB

Accessibility & contrast

On white

2.48

#63A9F0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.46

#63A9F0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A9F0

8.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A9F0	#FFFFFF	#000000	##000000
##63A9F0	1.00	2.48	8.46	8.46
#FFFFFF	2.48	1.00	21.00	21.00
#000000	8.46	21.00	1.00	1.00
##000000	8.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8BACF3

Deuteranopia (green-blind)

#789EEF

Tritanopia (blue-blind)

#00BAC2

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #63a9f0;
/* rgb */ color: rgb(99, 169, 240);
/* oklch */ color: oklch(71.9% 0.126 250.3);

Tailwind

colors: {
  custom: {
    50: '#9ac2f5',
    500: '#63a9f0',
    950: '#000000',
  },
}

SCSS

$custom: #63a9f0;
$custom-light: #9ac2f5;
$custom-dark: #000000;

JSON

{
  "hex": "#63a9f0",
  "rgb": {
    "r": 99,
    "g": 169,
    "b": 240
  },
  "hsl": {
    "h": 210.213,
    "s": 82.456,
    "l": 66.471
  },
  "oklch": {
    "l": 0.7186,
    "c": 0.12616,
    "h": 250.3
  },
  "luminance": 0.3732
}

Semantic roles & 50–950 ramp

primary

#63A9F0

secondary

#EED8C1

accent

#7407DF

background

#FAFBFE

surface

#F3F7FD

border

#CDD0D5

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63A9F0

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

Preview Lab → · Contrast checker → · Palette generator →