#4A90CF#4A90CF

#4A90CF is a light, moderate cyan. Relative luminance 0.259; OKLCH L 63.6% C 0.119 H 248.0°. Best body text is #000000 at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#4A90CF
RGB	rgb(74, 144, 207)
HSL	hsl(208, 58%, 55%)
HSV	hsv(208, 64%, 81%)
CMYK	cmyk(64.3%, 30.4%, 0%, 18.8%)
CIE-LAB	lab(57.95, -2.46, -38.94)
CIE-LCH	lch(57.95, 39.02, 266.38°)
OKLab	oklab(63.57% -0.0445 -0.11)
OKLCH	oklch(63.57% 0.119 248)
XYZ	xyz(24.0556, 25.9050, 62.7518)
Luminance	0.2591 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4A90CF #CF894A

analogous

#4ACFCC #4A90CF #4A4DCF

triadic

#4A90CF #CF4A90 #90CF4A

tetradic

#4A90CF #CC4ACF #CF894A #4DCF4A

square

#4A90CF #CC4ACF #CF894A #4DCF4A

split-complementary

#4A90CF #CF4A4D #CFCC4A

monochromatic

#21527D #2E71AE #4A90CF #7AAEDC #ABCBE9

Accessibility & contrast

On white

3.40

#4A90CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.18

#4A90CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4A90CF

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4A90CF	#FFFFFF	#000000	##000000
##4A90CF	1.00	3.40	6.18	6.18
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.18	21.00	1.00	1.00
##000000	6.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7492D2

Deuteranopia (green-blind)

#6285CE

Tritanopia (blue-blind)

#009FA6

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #4a90cf;
/* rgb */ color: rgb(74, 144, 207);
/* oklch */ color: oklch(63.6% 0.119 248.0);

Tailwind

colors: {
  custom: {
    50: '#89b0de',
    500: '#4a90cf',
    950: '#000000',
  },
}

SCSS

$custom: #4a90cf;
$custom-light: #89b0de;
$custom-dark: #000000;

JSON

{
  "hex": "#4a90cf",
  "rgb": {
    "r": 74,
    "g": 144,
    "b": 207
  },
  "hsl": {
    "h": 208.421,
    "s": 58.079,
    "l": 55.098
  },
  "oklch": {
    "l": 0.63569,
    "c": 0.11866,
    "h": 248
  },
  "luminance": 0.25907
}

Semantic roles & 50–950 ramp

primary

#4A90CF

secondary

#D6B99F

accent

#9046E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0D1015

muted

#7D7F83

Preview Lab

Preview with #4A90CF

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

Preview Lab → · Contrast checker → · Palette generator →