#4299D5#4299D5

#4299D5 is a light, vivid cyan. Relative luminance 0.287; OKLCH L 65.6% C 0.122 H 242.1°. Best body text is #000000 at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#4299D5
RGB	rgb(66, 153, 213)
HSL	hsl(204, 64%, 55%)
HSV	hsv(204, 69%, 84%)
CMYK	cmyk(69%, 28.2%, 0%, 16.5%)
CIE-LAB	lab(60.55, -6.89, -38.24)
CIE-LCH	lch(60.55, 38.85, 259.79°)
OKLab	oklab(65.64% -0.057 -0.1079)
OKLCH	oklch(65.64% 0.122 242.1)
XYZ	xyz(25.6436, 28.7420, 67.1342)
Luminance	0.2874 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4299D5 #D57E42

analogous

#42D5C8 #4299D5 #4250D5

triadic

#4299D5 #D54299 #99D542

tetradic

#4299D5 #C842D5 #D57E42 #50D542

square

#4299D5 #C842D5 #D57E42 #50D542

split-complementary

#4299D5 #D54250 #D5C842

monochromatic

#1C5780 #287AB2 #4299D5 #74B4E0 #A6CFEB

Accessibility & contrast

On white

3.11

#4299D5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.75

#4299D5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4299D5

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4299D5	#FFFFFF	#000000	##000000
##4299D5	1.00	3.11	6.75	6.75
#FFFFFF	3.11	1.00	21.00	21.00
#000000	6.75	21.00	1.00	1.00
##000000	6.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E9AD8

Deuteranopia (green-blind)

#698CD4

Tritanopia (blue-blind)

#00A8AE

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #4299d5;
/* rgb */ color: rgb(66, 153, 213);
/* oklch */ color: oklch(65.6% 0.122 242.1);

Tailwind

colors: {
  custom: {
    50: '#87b6e2',
    500: '#4299d5',
    950: '#000000',
  },
}

SCSS

$custom: #4299d5;
$custom-light: #87b6e2;
$custom-dark: #000000;

JSON

{
  "hex": "#4299d5",
  "rgb": {
    "r": 66,
    "g": 153,
    "b": 213
  },
  "hsl": {
    "h": 204.49,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.6564,
    "c": 0.12208,
    "h": 242.1
  },
  "luminance": 0.28745
}

Semantic roles & 50–950 ramp

primary

#4299D5

secondary

#D8B49A

accent

#8541E7

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0D1115

muted

#7D8083

Preview Lab

Preview with #4299D5

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

Preview Lab → · Contrast checker → · Palette generator →