#4299CF#4299CF

#4299CF is a light, moderate cyan. Relative luminance 0.284; OKLCH L 65.3% C 0.116 H 239.3°. Best body text is #000000 at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#4299CF
RGB	rgb(66, 153, 207)
HSL	hsl(203, 59%, 54%)
HSV	hsv(203, 68%, 81%)
CMYK	cmyk(68.1%, 26.1%, 0%, 18.8%)
CIE-LAB	lab(60.29, -8.91, -35.30)
CIE-LCH	lch(60.29, 36.41, 255.84°)
OKLab	oklab(65.34% -0.059 -0.0994)
OKLCH	oklch(65.34% 0.116 239.3)
XYZ	xyz(24.8961, 28.4430, 63.1974)
Luminance	0.2845 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4299CF #CF7842

analogous

#42CFBF #4299CF #4252CF

triadic

#4299CF #CF4299 #99CF42

tetradic

#4299CF #BF42CF #CF7842 #52CF42

square

#4299CF #BF42CF #CF7842 #52CF42

split-complementary

#4299CF #CF4252 #CFBF42

monochromatic

#1F5678 #2B79A9 #4299CF #73B3DB #A4CEE8

Accessibility & contrast

On white

3.14

#4299CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.69

#4299CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4299CF

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4299CF	#FFFFFF	#000000	##000000
##4299CF	1.00	3.14	6.69	6.69
#FFFFFF	3.14	1.00	21.00	21.00
#000000	6.69	21.00	1.00	1.00
##000000	6.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8099D1

Deuteranopia (green-blind)

#6D8BCE

Tritanopia (blue-blind)

#00A7AC

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #4299cf;
/* rgb */ color: rgb(66, 153, 207);
/* oklch */ color: oklch(65.3% 0.116 239.3);

Tailwind

colors: {
  custom: {
    50: '#86b6de',
    500: '#4299cf',
    950: '#000000',
  },
}

SCSS

$custom: #4299cf;
$custom-light: #86b6de;
$custom-dark: #000000;

JSON

{
  "hex": "#4299cf",
  "rgb": {
    "r": 66,
    "g": 153,
    "b": 207
  },
  "hsl": {
    "h": 202.979,
    "s": 59.494,
    "l": 53.529
  },
  "oklch": {
    "l": 0.65341,
    "c": 0.1156,
    "h": 239.3
  },
  "luminance": 0.28446
}

Semantic roles & 50–950 ramp

primary

#4299CF

secondary

#D5AF98

accent

#8145E3

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #4299CF

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

Preview Lab → · Contrast checker → · Palette generator →