#4099C0#4099C0

#4099C0 is a light, moderate cyan. Relative luminance 0.277; OKLCH L 64.6% C 0.102 H 230.2°. Best body text is #000000 at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#4099C0
RGB	rgb(64, 153, 192)
HSL	hsl(198, 50%, 50%)
HSV	hsv(198, 67%, 75%)
CMYK	cmyk(66.7%, 20.3%, 0%, 24.7%)
CIE-LAB	lab(59.59, -14.19, -27.96)
CIE-LCH	lch(59.59, 31.36, 243.10°)
OKLab	oklab(64.57% -0.0653 -0.0783)
OKLCH	oklch(64.57% 0.102 230.2)
XYZ	xyz(23.0162, 27.6758, 53.9879)
Luminance	0.2768 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4099C0 #C06740

analogous

#40C0A7 #4099C0 #4059C0

triadic

#4099C0 #C04099 #99C040

tetradic

#4099C0 #A740C0 #C06740 #59C040

square

#4099C0 #A740C0 #C06740 #59C040

split-complementary

#4099C0 #C04059 #C0A740

monochromatic

#215064 #307592 #4099C0 #6EB2CF #9CCADE

Accessibility & contrast

On white

3.21

#4099C0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.54

#4099C0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4099C0

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4099C0	#FFFFFF	#000000	##000000
##4099C0	1.00	3.21	6.54	6.54
#FFFFFF	3.21	1.00	21.00	21.00
#000000	6.54	21.00	1.00	1.00
##000000	6.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8597C2

Deuteranopia (green-blind)

#738ABF

Tritanopia (blue-blind)

#00A4A6

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #4099c0;
/* rgb */ color: rgb(64, 153, 192);
/* oklch */ color: oklch(64.6% 0.102 230.2);

Tailwind

colors: {
  custom: {
    50: '#83b7d3',
    500: '#4099c0',
    950: '#000000',
  },
}

SCSS

$custom: #4099c0;
$custom-light: #83b7d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4099c0",
  "rgb": {
    "r": 64,
    "g": 153,
    "b": 192
  },
  "hsl": {
    "h": 198.281,
    "s": 50.394,
    "l": 50.196
  },
  "oklch": {
    "l": 0.64565,
    "c": 0.102,
    "h": 230.2
  },
  "luminance": 0.27678
}

Semantic roles & 50–950 ramp

primary

#4099C0

secondary

#CBA391

accent

#794EDA

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1114

muted

#7D8082

Preview Lab

Preview with #4099C0

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

Preview Lab → · Contrast checker → · Palette generator →