#4099CB#4099CB

#4099CB is a light, moderate cyan. Relative luminance 0.282; OKLCH L 65.1% C 0.112 H 236.8°. Best body text is #000000 at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#4099CB
RGB	rgb(64, 153, 203)
HSL	hsl(202, 57%, 52%)
HSV	hsv(202, 68%, 80%)
CMYK	cmyk(68.5%, 24.6%, 0%, 20.4%)
CIE-LAB	lab(60.05, -10.55, -33.43)
CIE-LCH	lch(60.05, 35.06, 252.48°)
OKLab	oklab(65.08% -0.0615 -0.094)
OKLCH	oklch(65.08% 0.112 236.8)
XYZ	xyz(24.2809, 28.1816, 60.6483)
Luminance	0.2818 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4099CB #CB7240

analogous

#40CBB8 #4099CB #4053CB

triadic

#4099CB #CB4099 #99CB40

tetradic

#4099CB #B840CB #CB7240 #53CB40

square

#4099CB #B840CB #CB7240 #53CB40

split-complementary

#4099CB #CB4053 #CBB840

monochromatic

#1F5472 #2C77A2 #4099CB #70B3D8 #A0CCE5

Accessibility & contrast

On white

3.16

#4099CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.64

#4099CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4099CB

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4099CB	#FFFFFF	#000000	##000000
##4099CB	1.00	3.16	6.64	6.64
#FFFFFF	3.16	1.00	21.00	21.00
#000000	6.64	21.00	1.00	1.00
##000000	6.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8198CD

Deuteranopia (green-blind)

#6E8BCA

Tritanopia (blue-blind)

#00A6AA

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #4099cb;
/* rgb */ color: rgb(64, 153, 203);
/* oklch */ color: oklch(65.1% 0.112 236.8);

Tailwind

colors: {
  custom: {
    50: '#84b7db',
    500: '#4099cb',
    950: '#000000',
  },
}

SCSS

$custom: #4099cb;
$custom-light: #84b7db;
$custom-dark: #000000;

JSON

{
  "hex": "#4099cb",
  "rgb": {
    "r": 64,
    "g": 153,
    "b": 203
  },
  "hsl": {
    "h": 201.583,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.65081,
    "c": 0.11236,
    "h": 236.8
  },
  "luminance": 0.28184
}

Semantic roles & 50–950 ramp

primary

#4099CB

secondary

#D2AB95

accent

#7E47E0

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #4099CB

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

Preview Lab → · Contrast checker → · Palette generator →