#4099C9#4099C9

#4099C9 is a light, moderate cyan. Relative luminance 0.281; OKLCH L 65.0% C 0.110 H 235.7°. Best body text is #000000 at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#4099C9
RGB	rgb(64, 153, 201)
HSL	hsl(201, 56%, 52%)
HSV	hsv(201, 68%, 79%)
CMYK	cmyk(68.2%, 23.9%, 0%, 21.2%)
CIE-LAB	lab(59.97, -11.22, -32.44)
CIE-LCH	lch(59.97, 34.33, 250.92°)
OKLab	oklab(64.99% -0.0622 -0.0912)
OKLCH	oklch(64.99% 0.11 235.7)
XYZ	xyz(24.0441, 28.0869, 59.4012)
Luminance	0.2809 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4099C9 #C97040

analogous

#40C9B5 #4099C9 #4055C9

triadic

#4099C9 #C94099 #99C940

tetradic

#4099C9 #B540C9 #C97040 #55C940

square

#4099C9 #B540C9 #C97040 #55C940

split-complementary

#4099C9 #C94055 #C9B540

monochromatic

#1F536F #2D779F #4099C9 #70B2D6 #9FCCE4

Accessibility & contrast

On white

3.17

#4099C9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.62

#4099C9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4099C9

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4099C9	#FFFFFF	#000000	##000000
##4099C9	1.00	3.17	6.62	6.62
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.62	21.00	1.00	1.00
##000000	6.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8298CB

Deuteranopia (green-blind)

#6F8BC8

Tritanopia (blue-blind)

#00A5A9

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #4099c9;
/* rgb */ color: rgb(64, 153, 201);
/* oklch */ color: oklch(65.0% 0.110 235.7);

Tailwind

colors: {
  custom: {
    50: '#84b7d9',
    500: '#4099c9',
    950: '#000000',
  },
}

SCSS

$custom: #4099c9;
$custom-light: #84b7d9;
$custom-dark: #000000;

JSON

{
  "hex": "#4099c9",
  "rgb": {
    "r": 64,
    "g": 153,
    "b": 201
  },
  "hsl": {
    "h": 201.022,
    "s": 55.918,
    "l": 51.961
  },
  "oklch": {
    "l": 0.64985,
    "c": 0.11037,
    "h": 235.7
  },
  "luminance": 0.2809
}

Semantic roles & 50–950 ramp

primary

#4099C9

secondary

#D0A994

accent

#7D49DF

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #4099C9

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

Preview Lab → · Contrast checker → · Palette generator →