#4090D5#4090D5

#4090D5 is a light, vivid cyan. Relative luminance 0.258; OKLCH L 63.5% C 0.130 H 247.6°. Best body text is #000000 at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#4090D5
RGB	rgb(64, 144, 213)
HSL	hsl(208, 64%, 54%)
HSV	hsv(208, 70%, 84%)
CMYK	cmyk(70%, 32.4%, 0%, 16.5%)
CIE-LAB	lab(57.88, -2.02, -42.44)
CIE-LCH	lch(57.88, 42.48, 267.27°)
OKLab	oklab(63.52% -0.0495 -0.1203)
OKLCH	oklch(63.52% 0.13 247.6)
XYZ	xyz(24.0933, 25.8380, 66.6553)
Luminance	0.2584 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4090D5 #D58540

analogous

#40D5CF #4090D5 #4046D5

triadic

#4090D5 #D54090 #90D540

tetradic

#4090D5 #CF40D5 #D58540 #46D540

square

#4090D5 #CF40D5 #D58540 #46D540

split-complementary

#4090D5 #D54046 #D5CF40

monochromatic

#1C517F #2771B1 #4090D5 #72ADE0 #A4CAEB

Accessibility & contrast

On white

3.40

#4090D5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.17

#4090D5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4090D5

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4090D5	#FFFFFF	#000000	##000000
##4090D5	1.00	3.40	6.17	6.17
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.17	21.00	1.00	1.00
##000000	6.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7193D8

Deuteranopia (green-blind)

#5C85D4

Tritanopia (blue-blind)

#00A0A9

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #4090d5;
/* rgb */ color: rgb(64, 144, 213);
/* oklch */ color: oklch(63.5% 0.130 247.6);

Tailwind

colors: {
  custom: {
    50: '#86b0e2',
    500: '#4090d5',
    950: '#000000',
  },
}

SCSS

$custom: #4090d5;
$custom-light: #86b0e2;
$custom-dark: #000000;

JSON

{
  "hex": "#4090d5",
  "rgb": {
    "r": 64,
    "g": 144,
    "b": 213
  },
  "hsl": {
    "h": 207.785,
    "s": 63.948,
    "l": 54.314
  },
  "oklch": {
    "l": 0.63515,
    "c": 0.13005,
    "h": 247.6
  },
  "luminance": 0.25841
}

Semantic roles & 50–950 ramp

primary

#4090D5

secondary

#D8B699

accent

#8E41E7

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #4090D5

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

Preview Lab → · Contrast checker → · Palette generator →