#63A6E9#63A6E9

#63A6E9 is a light, vivid cyan. Relative luminance 0.358; OKLCH L 70.9% C 0.120 H 249.9°. Best body text is #000000 at 8.16:1 contrast (WCAG AA passes).

Color values

HEX	#63A6E9
RGB	rgb(99, 166, 233)
HSL	hsl(210, 75%, 65%)
HSV	hsv(210, 58%, 91%)
CMYK	cmyk(57.5%, 28.8%, 0%, 8.6%)
CIE-LAB	lab(66.37, -1.91, -40.11)
CIE-LCH	lch(66.37, 40.15, 267.27°)
OKLab	oklab(70.86% -0.0414 -0.1129)
OKLCH	oklch(70.86% 0.12 249.9)
XYZ	xyz(33.4845, 35.8053, 82.2215)
Luminance	0.3581 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A6E9 #E9A663

analogous

#63E9E9 #63A6E9 #6363E9

triadic

#63A6E9 #E963A6 #A6E963

tetradic

#63A6E9 #E963E9 #E9A663 #63E963

square

#63A6E9 #E963E9 #E9A663 #63E963

split-complementary

#63A6E9 #E96363 #E9E963

monochromatic

#1A69B8 #2D87E1 #63A6E9 #99C5F1 #CEE3F8

Accessibility & contrast

On white

2.57

#63A6E9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.16

#63A6E9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A6E9

8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A6E9	#FFFFFF	#000000	##000000
##63A6E9	1.00	2.57	8.16	8.16
#FFFFFF	2.57	1.00	21.00	21.00
#000000	8.16	21.00	1.00	1.00
##000000	8.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8AA9EC

Deuteranopia (green-blind)

#789BE8

Tritanopia (blue-blind)

#00B6BD

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #63a6e9;
/* rgb */ color: rgb(99, 166, 233);
/* oklch */ color: oklch(70.9% 0.120 249.9);

Tailwind

colors: {
  custom: {
    50: '#99c0f0',
    500: '#63a6e9',
    950: '#000000',
  },
}

SCSS

$custom: #63a6e9;
$custom-light: #99c0f0;
$custom-dark: #000000;

JSON

{
  "hex": "#63a6e9",
  "rgb": {
    "r": 99,
    "g": 166,
    "b": 233
  },
  "hsl": {
    "h": 210,
    "s": 75.281,
    "l": 65.098
  },
  "oklch": {
    "l": 0.7086,
    "c": 0.12021,
    "h": 249.9
  },
  "luminance": 0.35808
}

Semantic roles & 50–950 ramp

primary

#63A6E9

secondary

#EBD4BD

accent

#730ED7

background

#F9FBFE

surface

#F2F7FD

border

#CCD0D5

text

#0F1216

muted

#7E8184

Preview Lab

Preview with #63A6E9

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

Preview Lab → · Contrast checker → · Palette generator →