#4090BF#4090BF

#4090BF is a light, moderate cyan. Relative luminance 0.248; OKLCH L 62.4% C 0.105 H 237.6°. Best body text is #000000 at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#4090BF
RGB	rgb(64, 144, 191)
HSL	hsl(202, 50%, 50%)
HSV	hsv(202, 66%, 75%)
CMYK	cmyk(66.5%, 24.6%, 0%, 25.1%)
CIE-LAB	lab(56.88, -9.53, -31.61)
CIE-LCH	lch(56.88, 33.02, 253.23°)
OKLab	oklab(62.39% -0.0563 -0.0889)
OKLCH	oklch(62.39% 0.105 237.6)
XYZ	xyz(21.4879, 24.7958, 52.9337)
Luminance	0.2480 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4090BF #BF6F40

analogous

#40BFAF #4090BF #4050BF

triadic

#4090BF #BF4090 #90BF40

tetradic

#4090BF #AF40BF #BF6F40 #50BF40

square

#4090BF #AF40BF #BF6F40 #50BF40

split-complementary

#4090BF #BF4050 #BFAF40

monochromatic

#214B63 #316D91 #4090BF #6EABCE #9CC5DE

Accessibility & contrast

On white

3.52

#4090BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.96

#4090BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4090BF

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4090BF	#FFFFFF	#000000	##000000
##4090BF	1.00	3.52	5.96	5.96
#FFFFFF	3.52	1.00	21.00	21.00
#000000	5.96	21.00	1.00	1.00
##000000	5.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A90C1

Deuteranopia (green-blind)

#6983BE

Tritanopia (blue-blind)

#009CA0

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #4090bf;
/* rgb */ color: rgb(64, 144, 191);
/* oklch */ color: oklch(62.4% 0.105 237.6);

Tailwind

colors: {
  custom: {
    50: '#82b0d2',
    500: '#4090bf',
    950: '#000000',
  },
}

SCSS

$custom: #4090bf;
$custom-light: #82b0d2;
$custom-dark: #000000;

JSON

{
  "hex": "#4090bf",
  "rgb": {
    "r": 64,
    "g": 144,
    "b": 191
  },
  "hsl": {
    "h": 202.205,
    "s": 49.804,
    "l": 50
  },
  "oklch": {
    "l": 0.62388,
    "c": 0.10522,
    "h": 237.6
  },
  "luminance": 0.24798
}

Semantic roles & 50–950 ramp

primary

#4090BF

secondary

#CAA691

accent

#824ED9

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4090BF

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

Preview Lab → · Contrast checker → · Palette generator →