#4A90CB#4A90CB

#4A90CB is a light, moderate cyan. Relative luminance 0.257; OKLCH L 63.4% C 0.114 H 246.3°. Best body text is #000000 at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#4A90CB
RGB	rgb(74, 144, 203)
HSL	hsl(207, 55%, 54%)
HSV	hsv(207, 64%, 80%)
CMYK	cmyk(63.5%, 29.1%, 0%, 20.4%)
CIE-LAB	lab(57.76, -3.80, -36.98)
CIE-LCH	lch(57.76, 37.18, 264.14°)
OKLab	oklab(63.36% -0.0457 -0.1043)
OKLCH	oklch(63.36% 0.114 246.3)
XYZ	xyz(23.5728, 25.7118, 60.2089)
Luminance	0.2571 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4A90CB #CB854A

analogous

#4ACBC6 #4A90CB #4A50CB

triadic

#4A90CB #CB4A90 #90CB4A

tetradic

#4A90CB #C64ACB #CB854A #50CB4A

square

#4A90CB #C64ACB #CB854A #50CB4A

split-complementary

#4A90CB #CB4A50 #CBC64A

monochromatic

#235178 #3071A8 #4A90CB #7AADD9 #A9CAE6

Accessibility & contrast

On white

3.42

#4A90CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.14

#4A90CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4A90CB

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4A90CB	#FFFFFF	#000000	##000000
##4A90CB	1.00	3.42	6.14	6.14
#FFFFFF	3.42	1.00	21.00	21.00
#000000	6.14	21.00	1.00	1.00
##000000	6.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7692CE

Deuteranopia (green-blind)

#6585CA

Tritanopia (blue-blind)

#009EA5

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #4a90cb;
/* rgb */ color: rgb(74, 144, 203);
/* oklch */ color: oklch(63.4% 0.114 246.3);

Tailwind

colors: {
  custom: {
    50: '#88b0db',
    500: '#4a90cb',
    950: '#000000',
  },
}

SCSS

$custom: #4a90cb;
$custom-light: #88b0db;
$custom-dark: #000000;

JSON

{
  "hex": "#4a90cb",
  "rgb": {
    "r": 74,
    "g": 144,
    "b": 203
  },
  "hsl": {
    "h": 207.442,
    "s": 55.365,
    "l": 54.314
  },
  "oklch": {
    "l": 0.63364,
    "c": 0.11388,
    "h": 246.3
  },
  "luminance": 0.25714
}

Semantic roles & 50–950 ramp

primary

#4A90CB

secondary

#D4B69D

accent

#8E49DF

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #4A90CB

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

Preview Lab → · Contrast checker → · Palette generator →