#63B4F1#63B4F1

#63B4F1 is a light, moderate cyan. Relative luminance 0.416; OKLCH L 74.3% C 0.119 H 243.1°. Best body text is #000000 at 9.33:1 contrast (WCAG AA passes).

Color values

HEX	#63B4F1
RGB	rgb(99, 180, 241)
HSL	hsl(206, 84%, 67%)
HSV	hsv(206, 59%, 95%)
CMYK	cmyk(58.9%, 25.3%, 0%, 5.5%)
CIE-LAB	lab(70.62, -7.19, -37.84)
CIE-LCH	lch(70.62, 38.52, 259.25°)
OKLab	oklab(74.32% -0.0539 -0.1062)
OKLCH	oklch(74.32% 0.119 243.1)
XYZ	xyz(37.3381, 41.6426, 89.2722)
Luminance	0.4165 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B4F1 #F1A063

analogous

#63F1E7 #63B4F1 #636DF1

triadic

#63B4F1 #F163B4 #B4F163

tetradic

#63B4F1 #E763F1 #F1A063 #6DF163

square

#63B4F1 #E763F1 #F1A063 #6DF163

split-complementary

#63B4F1 #F1636D #F1E763

monochromatic

#127AC8 #2B99EC #63B4F1 #9BCFF6 #D3EAFB

Accessibility & contrast

On white

2.25

#63B4F1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.33

#63B4F1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B4F1

9.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B4F1	#FFFFFF	#000000	##000000
##63B4F1	1.00	2.25	9.33	9.33
#FFFFFF	2.25	1.00	21.00	21.00
#000000	9.33	21.00	1.00	1.00
##000000	9.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99B5F4

Deuteranopia (green-blind)

#86A6F0

Tritanopia (blue-blind)

#00C3C9

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #63b4f1;
/* rgb */ color: rgb(99, 180, 241);
/* oklch */ color: oklch(74.3% 0.119 243.1);

Tailwind

colors: {
  custom: {
    50: '#9acaf6',
    500: '#63b4f1',
    950: '#000000',
  },
}

SCSS

$custom: #63b4f1;
$custom-light: #9acaf6;
$custom-dark: #000000;

JSON

{
  "hex": "#63b4f1",
  "rgb": {
    "r": 99,
    "g": 180,
    "b": 241
  },
  "hsl": {
    "h": 205.775,
    "s": 83.529,
    "l": 66.667
  },
  "oklch": {
    "l": 0.74324,
    "c": 0.1191,
    "h": 243.1
  },
  "luminance": 0.41646
}

Semantic roles & 50–950 ramp

primary

#63B4F1

secondary

#EFD5C1

accent

#6306E0

background

#FAFCFF

surface

#F3F8FE

border

#CDD1D6

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B4F1

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

Preview Lab → · Contrast checker → · Palette generator →