#4099CC#4099CC

#4099CC is a light, moderate cyan. Relative luminance 0.282; OKLCH L 65.1% C 0.113 H 237.4°. Best body text is #000000 at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#4099CC
RGB	rgb(64, 153, 204)
HSL	hsl(202, 58%, 53%)
HSV	hsv(202, 69%, 80%)
CMYK	cmyk(68.6%, 25%, 0%, 20%)
CIE-LAB	lab(60.10, -10.22, -33.93)
CIE-LCH	lch(60.10, 35.43, 253.23°)
OKLab	oklab(65.13% -0.0611 -0.0955)
OKLCH	oklch(65.13% 0.113 237.4)
XYZ	xyz(24.4004, 28.2294, 61.2779)
Luminance	0.2823 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4099CC #CC7340

analogous

#40CCB9 #4099CC #4053CC

triadic

#4099CC #CC4099 #99CC40

tetradic

#4099CC #B940CC #CC7340 #53CC40

square

#4099CC #B940CC #CC7340 #53CC40

split-complementary

#4099CC #CC4053 #CCB940

monochromatic

#1F5473 #2C78A3 #4099CC #70B3D9 #A1CDE6

Accessibility & contrast

On white

3.16

#4099CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.65

#4099CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4099CC

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4099CC	#FFFFFF	#000000	##000000
##4099CC	1.00	3.16	6.65	6.65
#FFFFFF	3.16	1.00	21.00	21.00
#000000	6.65	21.00	1.00	1.00
##000000	6.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8198CE

Deuteranopia (green-blind)

#6E8BCB

Tritanopia (blue-blind)

#00A6AA

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #4099cc;
/* rgb */ color: rgb(64, 153, 204);
/* oklch */ color: oklch(65.1% 0.113 237.4);

Tailwind

colors: {
  custom: {
    50: '#85b7db',
    500: '#4099cc',
    950: '#000000',
  },
}

SCSS

$custom: #4099cc;
$custom-light: #85b7db;
$custom-dark: #000000;

JSON

{
  "hex": "#4099cc",
  "rgb": {
    "r": 64,
    "g": 153,
    "b": 204
  },
  "hsl": {
    "h": 201.857,
    "s": 57.851,
    "l": 52.549
  },
  "oklch": {
    "l": 0.65129,
    "c": 0.11337,
    "h": 237.4
  },
  "luminance": 0.28232
}

Semantic roles & 50–950 ramp

primary

#4099CC

secondary

#D2AC95

accent

#7F47E1

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #4099CC

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

Preview Lab → · Contrast checker → · Palette generator →