#63A4E9#63A4E9

#63A4E9 is a light, vivid cyan. Relative luminance 0.351; OKLCH L 70.4% C 0.122 H 251.2°. Best body text is #000000 at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#63A4E9
RGB	rgb(99, 164, 233)
HSL	hsl(211, 75%, 65%)
HSV	hsv(211, 58%, 91%)
CMYK	cmyk(57.5%, 29.6%, 0%, 8.6%)
CIE-LAB	lab(65.81, -0.79, -40.98)
CIE-LCH	lch(65.81, 40.99, 268.90°)
OKLab	oklab(70.42% -0.0392 -0.1154)
OKLCH	oklch(70.42% 0.122 251.2)
XYZ	xyz(33.1238, 35.0839, 82.1013)
Luminance	0.3509 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A4E9 #E9A863

analogous

#63E7E9 #63A4E9 #6563E9

triadic

#63A4E9 #E963A4 #A4E963

tetradic

#63A4E9 #E963E7 #E9A863 #63E965

square

#63A4E9 #E963E7 #E9A863 #63E965

split-complementary

#63A4E9 #E96563 #E7E963

monochromatic

#1A66B8 #2D85E1 #63A4E9 #99C3F1 #CEE3F8

Accessibility & contrast

On white

2.62

#63A4E9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.02

#63A4E9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A4E9

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A4E9	#FFFFFF	#000000	##000000
##63A4E9	1.00	2.62	8.02	8.02
#FFFFFF	2.62	1.00	21.00	21.00
#000000	8.02	21.00	1.00	1.00
##000000	8.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#87A7EC

Deuteranopia (green-blind)

#769AE8

Tritanopia (blue-blind)

#00B4BC

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #63a4e9;
/* rgb */ color: rgb(99, 164, 233);
/* oklch */ color: oklch(70.4% 0.122 251.2);

Tailwind

colors: {
  custom: {
    50: '#99bef0',
    500: '#63a4e9',
    950: '#000000',
  },
}

SCSS

$custom: #63a4e9;
$custom-light: #99bef0;
$custom-dark: #000000;

JSON

{
  "hex": "#63a4e9",
  "rgb": {
    "r": 99,
    "g": 164,
    "b": 233
  },
  "hsl": {
    "h": 210.896,
    "s": 75.281,
    "l": 65.098
  },
  "oklch": {
    "l": 0.70423,
    "c": 0.12189,
    "h": 251.2
  },
  "luminance": 0.35087
}

Semantic roles & 50–950 ramp

primary

#63A4E9

secondary

#EBD5BD

accent

#760ED7

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0F1216

muted

#7E8184

Preview Lab

Preview with #63A4E9

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

Preview Lab → · Contrast checker → · Palette generator →