#4090D3#4090D3

#4090D3 is a light, vivid cyan. Relative luminance 0.257; OKLCH L 63.4% C 0.128 H 246.9°. Best body text is #000000 at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#4090D3
RGB	rgb(64, 144, 211)
HSL	hsl(207, 63%, 54%)
HSV	hsv(207, 70%, 83%)
CMYK	cmyk(69.7%, 31.8%, 0%, 17.3%)
CIE-LAB	lab(57.79, -2.72, -41.47)
CIE-LCH	lch(57.79, 41.55, 266.25°)
OKLab	oklab(63.41% -0.0501 -0.1174)
OKLCH	oklch(63.41% 0.128 246.9)
XYZ	xyz(23.8410, 25.7371, 65.3267)
Luminance	0.2574 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4090D3 #D38340

analogous

#40D3CD #4090D3 #4047D3

triadic

#4090D3 #D34090 #90D340

tetradic

#4090D3 #CD40D3 #D38340 #47D340

square

#4090D3 #CD40D3 #D38340 #47D340

split-complementary

#4090D3 #D34047 #D3CD40

monochromatic

#1D517C #2871AE #4090D3 #72ADDE #A3CAEA

Accessibility & contrast

On white

3.42

#4090D3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.15

#4090D3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4090D3

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4090D3	#FFFFFF	#000000	##000000
##4090D3	1.00	3.42	6.15	6.15
#FFFFFF	3.42	1.00	21.00	21.00
#000000	6.15	21.00	1.00	1.00
##000000	6.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7293D6

Deuteranopia (green-blind)

#5D85D2

Tritanopia (blue-blind)

#00A0A8

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #4090d3;
/* rgb */ color: rgb(64, 144, 211);
/* oklch */ color: oklch(63.4% 0.128 246.9);

Tailwind

colors: {
  custom: {
    50: '#85b0e1',
    500: '#4090d3',
    950: '#000000',
  },
}

SCSS

$custom: #4090d3;
$custom-light: #85b0e1;
$custom-dark: #000000;

JSON

{
  "hex": "#4090d3",
  "rgb": {
    "r": 64,
    "g": 144,
    "b": 211
  },
  "hsl": {
    "h": 207.347,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.63408,
    "c": 0.12766,
    "h": 246.9
  },
  "luminance": 0.2574
}

Semantic roles & 50–950 ramp

primary

#4090D3

secondary

#D7B598

accent

#8D42E6

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #4090D3

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

Preview Lab → · Contrast checker → · Palette generator →