#63B4F0#63B4F0

#63B4F0 is a light, moderate cyan. Relative luminance 0.416; OKLCH L 74.3% C 0.118 H 242.7°. Best body text is #000000 at 9.32:1 contrast (WCAG AA passes).

Color values

HEX	#63B4F0
RGB	rgb(99, 180, 240)
HSL	hsl(206, 82%, 66%)
HSV	hsv(206, 59%, 94%)
CMYK	cmyk(58.8%, 25%, 0%, 5.9%)
CIE-LAB	lab(70.58, -7.50, -37.36)
CIE-LCH	lch(70.58, 38.10, 258.65°)
OKLab	oklab(74.28% -0.0542 -0.1048)
OKLCH	oklch(74.28% 0.118 242.7)
XYZ	xyz(37.1892, 41.5830, 88.4877)
Luminance	0.4159 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B4F0 #F09F63

analogous

#63F0E6 #63B4F0 #636EF0

triadic

#63B4F0 #F063B4 #B4F063

tetradic

#63B4F0 #E663F0 #F09F63 #6EF063

square

#63B4F0 #E663F0 #F09F63 #6EF063

split-complementary

#63B4F0 #F0636E #F0E663

monochromatic

#137AC6 #2B99EB #63B4F0 #9BCFF5 #D3EAFB

Accessibility & contrast

On white

2.25

#63B4F0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.32

#63B4F0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B4F0

9.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B4F0	#FFFFFF	#000000	##000000
##63B4F0	1.00	2.25	9.32	9.32
#FFFFFF	2.25	1.00	21.00	21.00
#000000	9.32	21.00	1.00	1.00
##000000	9.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9AB5F3

Deuteranopia (green-blind)

#86A6EF

Tritanopia (blue-blind)

#00C3C9

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #63b4f0;
/* rgb */ color: rgb(99, 180, 240);
/* oklch */ color: oklch(74.3% 0.118 242.7);

Tailwind

colors: {
  custom: {
    50: '#9acaf5',
    500: '#63b4f0',
    950: '#000000',
  },
}

SCSS

$custom: #63b4f0;
$custom-light: #9acaf5;
$custom-dark: #000000;

JSON

{
  "hex": "#63b4f0",
  "rgb": {
    "r": 99,
    "g": 180,
    "b": 240
  },
  "hsl": {
    "h": 205.532,
    "s": 82.456,
    "l": 66.471
  },
  "oklch": {
    "l": 0.74278,
    "c": 0.11802,
    "h": 242.7
  },
  "luminance": 0.41586
}

Semantic roles & 50–950 ramp

primary

#63B4F0

secondary

#EED4C1

accent

#6307DF

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B4F0

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

Preview Lab → · Contrast checker → · Palette generator →