#4090BB#4090BB

#4090BB is a light, moderate cyan. Relative luminance 0.246; OKLCH L 62.2% C 0.101 H 235.2°. Best body text is #000000 at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#4090BB
RGB	rgb(64, 144, 187)
HSL	hsl(201, 49%, 49%)
HSV	hsv(201, 66%, 73%)
CMYK	cmyk(65.8%, 23%, 0%, 26.7%)
CIE-LAB	lab(56.71, -10.86, -29.61)
CIE-LCH	lch(56.71, 31.54, 249.86°)
OKLab	oklab(62.2% -0.0577 -0.0831)
OKLCH	oklch(62.2% 0.101 235.2)
XYZ	xyz(21.0538, 24.6222, 50.6471)
Luminance	0.2462 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4090BB #BB6B40

analogous

#40BBA9 #4090BB #4052BB

triadic

#4090BB #BB4090 #90BB40

tetradic

#4090BB #A940BB #BB6B40 #52BB40

square

#4090BB #A940BB #BB6B40 #52BB40

split-complementary

#4090BB #BB4052 #BBA940

monochromatic

#214A60 #306D8D #4090BB #6CABCD #99C5DC

Accessibility & contrast

On white

3.54

#4090BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.92

#4090BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4090BB

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4090BB	#FFFFFF	#000000	##000000
##4090BB	1.00	3.54	5.92	5.92
#FFFFFF	3.54	1.00	21.00	21.00
#000000	5.92	21.00	1.00	1.00
##000000	5.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8FBD

Deuteranopia (green-blind)

#6B83BA

Tritanopia (blue-blind)

#009B9E

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #4090bb;
/* rgb */ color: rgb(64, 144, 187);
/* oklch */ color: oklch(62.2% 0.101 235.2);

Tailwind

colors: {
  custom: {
    50: '#82b0cf',
    500: '#4090bb',
    950: '#000000',
  },
}

SCSS

$custom: #4090bb;
$custom-light: #82b0cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4090bb",
  "rgb": {
    "r": 64,
    "g": 144,
    "b": 187
  },
  "hsl": {
    "h": 200.976,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.62197,
    "c": 0.10118,
    "h": 235.2
  },
  "luminance": 0.24624
}

Semantic roles & 50–950 ramp

primary

#4090BB

secondary

#C8A38F

accent

#7F4FD9

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #4090BB

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

Preview Lab → · Contrast checker → · Palette generator →