#4099D5#4099D5

#4099D5 is a light, vivid cyan. Relative luminance 0.287; OKLCH L 65.6% C 0.123 H 241.7°. Best body text is #000000 at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#4099D5
RGB	rgb(64, 153, 213)
HSL	hsl(204, 64%, 54%)
HSV	hsv(204, 70%, 84%)
CMYK	cmyk(70%, 28.2%, 0%, 16.5%)
CIE-LAB	lab(60.49, -7.18, -38.34)
CIE-LCH	lch(60.49, 39.00, 259.39°)
OKLab	oklab(65.58% -0.0582 -0.1082)
OKLCH	oklch(65.58% 0.123 241.7)
XYZ	xyz(25.5112, 28.6737, 67.1280)
Luminance	0.2868 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4099D5 #D57C40

analogous

#40D5C6 #4099D5 #404FD5

triadic

#4099D5 #D54099 #99D540

tetradic

#4099D5 #C640D5 #D57C40 #4FD540

square

#4099D5 #C640D5 #D57C40 #4FD540

split-complementary

#4099D5 #D5404F #D5C640

monochromatic

#1C577F #2779B1 #4099D5 #72B4E0 #A4CFEB

Accessibility & contrast

On white

3.12

#4099D5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.74

#4099D5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4099D5

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4099D5	#FFFFFF	#000000	##000000
##4099D5	1.00	3.12	6.74	6.74
#FFFFFF	3.12	1.00	21.00	21.00
#000000	6.74	21.00	1.00	1.00
##000000	6.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D9AD8

Deuteranopia (green-blind)

#698BD4

Tritanopia (blue-blind)

#00A8AE

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #4099d5;
/* rgb */ color: rgb(64, 153, 213);
/* oklch */ color: oklch(65.6% 0.123 241.7);

Tailwind

colors: {
  custom: {
    50: '#86b6e2',
    500: '#4099d5',
    950: '#000000',
  },
}

SCSS

$custom: #4099d5;
$custom-light: #86b6e2;
$custom-dark: #000000;

JSON

{
  "hex": "#4099d5",
  "rgb": {
    "r": 64,
    "g": 153,
    "b": 213
  },
  "hsl": {
    "h": 204.161,
    "s": 63.948,
    "l": 54.314
  },
  "oklch": {
    "l": 0.65575,
    "c": 0.12291,
    "h": 241.7
  },
  "luminance": 0.28677
}

Semantic roles & 50–950 ramp

primary

#4099D5

secondary

#D8B299

accent

#8441E7

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #4099D5

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

Preview Lab → · Contrast checker → · Palette generator →