#4090D8#4090D8

#4090D8 is a light, vivid cyan. Relative luminance 0.260; OKLCH L 63.7% C 0.134 H 248.7°. Best body text is #000000 at 6.20:1 contrast (WCAG AA passes).

Color values

HEX	#4090D8
RGB	rgb(64, 144, 216)
HSL	hsl(208, 66%, 55%)
HSV	hsv(208, 70%, 85%)
CMYK	cmyk(70.4%, 33.3%, 0%, 15.3%)
CIE-LAB	lab(58.03, -0.98, -43.88)
CIE-LCH	lch(58.03, 43.90, 268.72°)
OKLab	oklab(63.68% -0.0486 -0.1245)
OKLCH	oklch(63.68% 0.134 248.7)
XYZ	xyz(24.4776, 25.9917, 68.6793)
Luminance	0.2599 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4090D8 #D88840

analogous

#40D8D4 #4090D8 #4044D8

triadic

#4090D8 #D84090 #90D840

tetradic

#4090D8 #D440D8 #D88840 #44D840

square

#4090D8 #D440D8 #D88840 #44D840

split-complementary

#4090D8 #D84044 #D8D440

monochromatic

#1B5283 #2571B6 #4090D8 #73AEE2 #A6CBED

Accessibility & contrast

On white

3.39

#4090D8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.20

#4090D8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4090D8

6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4090D8	#FFFFFF	#000000	##000000
##4090D8	1.00	3.39	6.20	6.20
#FFFFFF	3.39	1.00	21.00	21.00
#000000	6.20	21.00	1.00	1.00
##000000	6.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7093DB

Deuteranopia (green-blind)

#5A85D7

Tritanopia (blue-blind)

#00A1AA

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #4090d8;
/* rgb */ color: rgb(64, 144, 216);
/* oklch */ color: oklch(63.7% 0.134 248.7);

Tailwind

colors: {
  custom: {
    50: '#86b0e4',
    500: '#4090d8',
    950: '#000000',
  },
}

SCSS

$custom: #4090d8;
$custom-light: #86b0e4;
$custom-dark: #000000;

JSON

{
  "hex": "#4090d8",
  "rgb": {
    "r": 64,
    "g": 144,
    "b": 216
  },
  "hsl": {
    "h": 208.421,
    "s": 66.087,
    "l": 54.902
  },
  "oklch": {
    "l": 0.63678,
    "c": 0.13367,
    "h": 248.7
  },
  "luminance": 0.25994
}

Semantic roles & 50–950 ramp

primary

#4090D8

secondary

#DAB89A

accent

#8F3FE9

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0D1015

muted

#7D7F84

Preview Lab

Preview with #4090D8

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

Preview Lab → · Contrast checker → · Palette generator →