#63B0F3#63B0F3

#63B0F3 is a light, vivid cyan. Relative luminance 0.402; OKLCH L 73.5% C 0.124 H 246.7°. Best body text is #000000 at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#63B0F3
RGB	rgb(99, 176, 243)
HSL	hsl(208, 86%, 67%)
HSV	hsv(208, 59%, 95%)
CMYK	cmyk(59.3%, 27.6%, 0%, 4.7%)
CIE-LAB	lab(69.59, -4.36, -40.53)
CIE-LCH	lch(69.59, 40.77, 263.86°)
OKLab	oklab(73.54% -0.0491 -0.114)
OKLCH	oklch(73.54% 0.124 246.7)
XYZ	xyz(36.8427, 40.1710, 90.5888)
Luminance	0.4017 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B0F3 #F3A663

analogous

#63F3EE #63B0F3 #6368F3

triadic

#63B0F3 #F363B0 #B0F363

tetradic

#63B0F3 #EE63F3 #F3A663 #68F363

square

#63B0F3 #EE63F3 #F3A663 #68F363

split-complementary

#63B0F3 #F36368 #F3EE63

monochromatic

#1074CC #2A93EF #63B0F3 #9CCDF7 #D5EAFC

Accessibility & contrast

On white

2.32

#63B0F3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.03

#63B0F3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B0F3

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B0F3	#FFFFFF	#000000	##000000
##63B0F3	1.00	2.32	9.03	9.03
#FFFFFF	2.32	1.00	21.00	21.00
#000000	9.03	21.00	1.00	1.00
##000000	9.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#93B2F6

Deuteranopia (green-blind)

#80A4F2

Tritanopia (blue-blind)

#00C0C7

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #63b0f3;
/* rgb */ color: rgb(99, 176, 243);
/* oklch */ color: oklch(73.5% 0.124 246.7);

Tailwind

colors: {
  custom: {
    50: '#9ac7f7',
    500: '#63b0f3',
    950: '#000000',
  },
}

SCSS

$custom: #63b0f3;
$custom-light: #9ac7f7;
$custom-dark: #000000;

JSON

{
  "hex": "#63b0f3",
  "rgb": {
    "r": 99,
    "g": 176,
    "b": 243
  },
  "hsl": {
    "h": 207.917,
    "s": 85.714,
    "l": 67.059
  },
  "oklch": {
    "l": 0.73537,
    "c": 0.12415,
    "h": 246.7
  },
  "luminance": 0.40174
}

Semantic roles & 50–950 ramp

primary

#63B0F3

secondary

#F0D7C2

accent

#6B03E2

background

#FAFCFF

surface

#F3F8FE

border

#CDD1D6

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B0F3

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

Preview Lab → · Contrast checker → · Palette generator →