#4099C5#4099C5

#4099C5 is a light, moderate cyan. Relative luminance 0.279; OKLCH L 64.8% C 0.107 H 233.4°. Best body text is #000000 at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#4099C5
RGB	rgb(64, 153, 197)
HSL	hsl(200, 53%, 51%)
HSV	hsv(200, 68%, 77%)
CMYK	cmyk(67.5%, 22.3%, 0%, 22.7%)
CIE-LAB	lab(59.80, -12.55, -30.46)
CIE-LCH	lch(59.80, 32.94, 247.61°)
OKLab	oklab(64.8% -0.0635 -0.0855)
OKLCH	oklch(64.8% 0.107 233.4)
XYZ	xyz(23.5797, 27.9011, 56.9553)
Luminance	0.2790 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4099C5 #C56C40

analogous

#40C5AF #4099C5 #4056C5

triadic

#4099C5 #C54099 #99C540

tetradic

#4099C5 #AF40C5 #C56C40 #56C540

square

#4099C5 #AF40C5 #C56C40 #56C540

split-complementary

#4099C5 #C54056 #C5AF40

monochromatic

#20526A #2F7699 #4099C5 #6FB2D3 #9ECBE2

Accessibility & contrast

On white

3.19

#4099C5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.58

#4099C5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4099C5

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4099C5	#FFFFFF	#000000	##000000
##4099C5	1.00	3.19	6.58	6.58
#FFFFFF	3.19	1.00	21.00	21.00
#000000	6.58	21.00	1.00	1.00
##000000	6.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8398C7

Deuteranopia (green-blind)

#718AC4

Tritanopia (blue-blind)

#00A5A8

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #4099c5;
/* rgb */ color: rgb(64, 153, 197);
/* oklch */ color: oklch(64.8% 0.107 233.4);

Tailwind

colors: {
  custom: {
    50: '#84b7d6',
    500: '#4099c5',
    950: '#000000',
  },
}

SCSS

$custom: #4099c5;
$custom-light: #84b7d6;
$custom-dark: #000000;

JSON

{
  "hex": "#4099c5",
  "rgb": {
    "r": 64,
    "g": 153,
    "b": 197
  },
  "hsl": {
    "h": 199.85,
    "s": 53.414,
    "l": 51.176
  },
  "oklch": {
    "l": 0.64796,
    "c": 0.10651,
    "h": 233.4
  },
  "luminance": 0.27904
}

Semantic roles & 50–950 ramp

primary

#4099C5

secondary

#CEA693

accent

#7B4BDD

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #4099C5

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

Preview Lab → · Contrast checker → · Palette generator →