#4C90CF#4C90CF

#4C90CF is a light, moderate cyan. Relative luminance 0.260; OKLCH L 63.7% C 0.118 H 248.5°. Best body text is #000000 at 6.20:1 contrast (WCAG AA passes).

Color values

HEX	#4C90CF
RGB	rgb(76, 144, 207)
HSL	hsl(209, 58%, 55%)
HSV	hsv(209, 63%, 81%)
CMYK	cmyk(63.3%, 30.4%, 0%, 18.8%)
CIE-LAB	lab(58.02, -2.11, -38.82)
CIE-LCH	lch(58.02, 38.88, 266.89°)
OKLab	oklab(63.65% -0.0431 -0.1096)
OKLCH	oklch(63.65% 0.118 248.5)
XYZ	xyz(24.2121, 25.9856, 62.7591)
Luminance	0.2599 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C90CF #CF8B4C

analogous

#4CCFCC #4C90CF #4C4ECF

triadic

#4C90CF #CF4C90 #90CF4C

tetradic

#4C90CF #CC4CCF #CF8B4C #4ECF4C

square

#4C90CF #CC4CCF #CF8B4C #4ECF4C

split-complementary

#4C90CF #CF4C4E #CFCC4C

monochromatic

#22527F #2F71AF #4C90CF #7CAEDC #ADCCE9

Accessibility & contrast

On white

3.39

#4C90CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.20

#4C90CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4C90CF

6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C90CF	#FFFFFF	#000000	##000000
##4C90CF	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)

#7592D2

Deuteranopia (green-blind)

#6386CE

Tritanopia (blue-blind)

#009FA6

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #4c90cf;
/* rgb */ color: rgb(76, 144, 207);
/* oklch */ color: oklch(63.7% 0.118 248.5);

Tailwind

colors: {
  custom: {
    50: '#8ab0de',
    500: '#4c90cf',
    950: '#000000',
  },
}

SCSS

$custom: #4c90cf;
$custom-light: #8ab0de;
$custom-dark: #000000;

JSON

{
  "hex": "#4c90cf",
  "rgb": {
    "r": 76,
    "g": 144,
    "b": 207
  },
  "hsl": {
    "h": 208.855,
    "s": 57.709,
    "l": 55.49
  },
  "oklch": {
    "l": 0.63651,
    "c": 0.11776,
    "h": 248.5
  },
  "luminance": 0.25988
}

Semantic roles & 50–950 ramp

primary

#4C90CF

secondary

#D7BAA0

accent

#9147E1

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D1015

muted

#7E7F83

Preview Lab

Preview with #4C90CF

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

Preview Lab → · Contrast checker → · Palette generator →