#4099B2#4099B2

#4099B2 is a light, moderate cyan. Relative luminance 0.271; OKLCH L 64.0% C 0.092 H 219.4°. Best body text is #000000 at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#4099B2
RGB	rgb(64, 153, 178)
HSL	hsl(193, 47%, 47%)
HSV	hsv(193, 64%, 70%)
CMYK	cmyk(64%, 14%, 0%, 30.2%)
CIE-LAB	lab(59.05, -18.67, -20.89)
CIE-LCH	lch(59.05, 28.02, 228.21°)
OKLab	oklab(63.95% -0.0707 -0.0581)
OKLCH	oklch(63.95% 0.092 219.4)
XYZ	xyz(21.5382, 27.0845, 46.2036)
Luminance	0.2709 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4099B2 #B25940

analogous

#40B292 #4099B2 #4060B2

triadic

#4099B2 #B24099 #99B240

tetradic

#4099B2 #9240B2 #B25940 #60B240

square

#4099B2 #9240B2 #B25940 #60B240

split-complementary

#4099B2 #B24060 #B29240

monochromatic

#204C58 #307285 #4099B2 #67B3C8 #94C9D8

Accessibility & contrast

On white

3.27

#4099B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.42

#4099B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4099B2

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4099B2	#FFFFFF	#000000	##000000
##4099B2	1.00	3.27	6.42	6.42
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.42	21.00	1.00	1.00
##000000	6.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8995B3

Deuteranopia (green-blind)

#7989B2

Tritanopia (blue-blind)

#00A1A1

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #4099b2;
/* rgb */ color: rgb(64, 153, 178);
/* oklch */ color: oklch(64.0% 0.092 219.4);

Tailwind

colors: {
  custom: {
    50: '#81b7c9',
    500: '#4099b2',
    950: '#000000',
  },
}

SCSS

$custom: #4099b2;
$custom-light: #81b7c9;
$custom-dark: #000000;

JSON

{
  "hex": "#4099b2",
  "rgb": {
    "r": 64,
    "g": 153,
    "b": 178
  },
  "hsl": {
    "h": 193.158,
    "s": 47.107,
    "l": 47.451
  },
  "oklch": {
    "l": 0.63953,
    "c": 0.09152,
    "h": 219.4
  },
  "luminance": 0.27087
}

Semantic roles & 50–950 ramp

primary

#4099B2

secondary

#C4978A

accent

#6E51D7

background

#F8FBFC

surface

#F0F6F8

border

#CBD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #4099B2

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

Preview Lab → · Contrast checker → · Palette generator →