#4299D9#4299D9

#4299D9 is a light, vivid cyan. Relative luminance 0.289; OKLCH L 65.8% C 0.127 H 243.8°. Best body text is #000000 at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#4299D9
RGB	rgb(66, 153, 217)
HSL	hsl(205, 67%, 55%)
HSV	hsv(205, 70%, 85%)
CMYK	cmyk(69.6%, 29.5%, 0%, 14.9%)
CIE-LAB	lab(60.74, -5.53, -40.18)
CIE-LCH	lch(60.74, 40.56, 262.17°)
OKLab	oklab(65.84% -0.0558 -0.1136)
OKLCH	oklch(65.84% 0.127 243.8)
XYZ	xyz(26.1576, 28.9476, 69.8411)
Luminance	0.2895 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4299D9 #D98242

analogous

#42D9CD #4299D9 #424ED9

triadic

#4299D9 #D94299 #99D942

tetradic

#4299D9 #CD42D9 #D98242 #4ED942

square

#4299D9 #CD42D9 #D98242 #4ED942

split-complementary

#4299D9 #D9424E #D9CD42

monochromatic

#1B5886 #257AB9 #4299D9 #75B4E3 #A8D0ED

Accessibility & contrast

On white

3.09

#4299D9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.79

#4299D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4299D9

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4299D9	#FFFFFF	#000000	##000000
##4299D9	1.00	3.09	6.79	6.79
#FFFFFF	3.09	1.00	21.00	21.00
#000000	6.79	21.00	1.00	1.00
##000000	6.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C9BDC

Deuteranopia (green-blind)

#678CD8

Tritanopia (blue-blind)

#00A9AF

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #4299d9;
/* rgb */ color: rgb(66, 153, 217);
/* oklch */ color: oklch(65.8% 0.127 243.8);

Tailwind

colors: {
  custom: {
    50: '#87b6e5',
    500: '#4299d9',
    950: '#000000',
  },
}

SCSS

$custom: #4299d9;
$custom-light: #87b6e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4299d9",
  "rgb": {
    "r": 66,
    "g": 153,
    "b": 217
  },
  "hsl": {
    "h": 205.43,
    "s": 66.52,
    "l": 55.49
  },
  "oklch": {
    "l": 0.65844,
    "c": 0.12656,
    "h": 243.8
  },
  "luminance": 0.2895
}

Semantic roles & 50–950 ramp

primary

#4299D9

secondary

#DBB79C

accent

#873EE9

background

#F9FBFE

surface

#F1F6FC

border

#CBD0D5

text

#0D1115

muted

#7E8084

Preview Lab

Preview with #4299D9

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

Preview Lab → · Contrast checker → · Palette generator →