#4099E0#4099E0

#4099E0 is a light, vivid cyan. Relative luminance 0.293; OKLCH L 66.1% C 0.135 H 246.1°. Best body text is #000000 at 6.85:1 contrast (WCAG AA passes).

Color values

HEX	#4099E0
RGB	rgb(64, 153, 224)
HSL	hsl(207, 72%, 56%)
HSV	hsv(207, 71%, 88%)
CMYK	cmyk(71.4%, 31.7%, 0%, 12.2%)
CIE-LAB	lab(61.00, -3.41, -43.66)
CIE-LCH	lch(61.00, 43.79, 265.54°)
OKLab	oklab(66.15% -0.0549 -0.1237)
OKLCH	oklch(66.15% 0.135 246.1)
XYZ	xyz(26.9550, 29.2513, 74.7320)
Luminance	0.2925 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4099E0 #E08740

analogous

#40E0D7 #4099E0 #4049E0

triadic

#4099E0 #E04099 #99E040

tetradic

#4099E0 #D740E0 #E08740 #49E040

square

#4099E0 #D740E0 #E08740 #49E040

split-complementary

#4099E0 #E04049 #E0D740

monochromatic

#175A8E #207BC3 #4099E0 #75B5E9 #A9D1F1

Accessibility & contrast

On white

3.07

#4099E0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.85

#4099E0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4099E0

6.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4099E0	#FFFFFF	#000000	##000000
##4099E0	1.00	3.07	6.85	6.85
#FFFFFF	3.07	1.00	21.00	21.00
#000000	6.85	21.00	1.00	1.00
##000000	6.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#799CE3

Deuteranopia (green-blind)

#628CDF

Tritanopia (blue-blind)

#00AAB2

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #4099e0;
/* rgb */ color: rgb(64, 153, 224);
/* oklch */ color: oklch(66.1% 0.135 246.1);

Tailwind

colors: {
  custom: {
    50: '#88b6ea',
    500: '#4099e0',
    950: '#000000',
  },
}

SCSS

$custom: #4099e0;
$custom-light: #88b6ea;
$custom-dark: #000000;

JSON

{
  "hex": "#4099e0",
  "rgb": {
    "r": 64,
    "g": 153,
    "b": 224
  },
  "hsl": {
    "h": 206.625,
    "s": 72.072,
    "l": 56.471
  },
  "oklch": {
    "l": 0.66145,
    "c": 0.13537,
    "h": 246.1
  },
  "luminance": 0.29254
}

Semantic roles & 50–950 ramp

primary

#4099E0

secondary

#DFBA9D

accent

#8A39EF

background

#F9FBFE

surface

#F1F6FD

border

#CBD0D5

text

#0D1116

muted

#7E8084

Preview Lab

Preview with #4099E0

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

Preview Lab → · Contrast checker → · Palette generator →