#4B90FC#4B90FC

#4B90FC is a light, vivid blue. Relative luminance 0.285; OKLCH L 66.2% C 0.175 H 259.1°. Best body text is #000000 at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#4B90FC
RGB	rgb(75, 144, 252)
HSL	hsl(217, 97%, 64%)
HSV	hsv(217, 70%, 99%)
CMYK	cmyk(70.2%, 42.9%, 0%, 1.2%)
CIE-LAB	lab(60.31, 13.17, -60.19)
CIE-LCH	lch(60.31, 61.61, 282.34°)
OKLab	oklab(66.18% -0.0331 -0.1721)
OKLCH	oklch(66.18% 0.175 259.1)
XYZ	xyz(30.4392, 28.4674, 95.9671)
Luminance	0.2847 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B90FC #FCB74B

analogous

#4BE9FC #4B90FC #5F4BFC

triadic

#4B90FC #FC4B90 #90FC4B

tetradic

#4B90FC #FC4BE9 #FCB74B #4BFC5F

square

#4B90FC #FC4BE9 #FCB74B #4BFC5F

split-complementary

#4B90FC #FC5F4B #E9FC4B

monochromatic

#0350C9 #0F6BFB #4B90FC #87B5FD #C3DAFE

Accessibility & contrast

On white

3.14

#4B90FC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.69

#4B90FC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B90FC

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B90FC	#FFFFFF	#000000	##000000
##4B90FC	1.00	3.14	6.69	6.69
#FFFFFF	3.14	1.00	21.00	21.00
#000000	6.69	21.00	1.00	1.00
##000000	6.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B9AFF

Deuteranopia (green-blind)

#3B8AFA

Tritanopia (blue-blind)

#00A9BA

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #4b90fc;
/* rgb */ color: rgb(75, 144, 252);
/* oklch */ color: oklch(66.2% 0.175 259.1);

Tailwind

colors: {
  custom: {
    50: '#91affe',
    500: '#4b90fc',
    950: '#000000',
  },
}

SCSS

$custom: #4b90fc;
$custom-light: #91affe;
$custom-dark: #000000;

JSON

{
  "hex": "#4b90fc",
  "rgb": {
    "r": 75,
    "g": 144,
    "b": 252
  },
  "hsl": {
    "h": 216.61,
    "s": 96.721,
    "l": 64.118
  },
  "oklch": {
    "l": 0.66179,
    "c": 0.1753,
    "h": 259.1
  },
  "luminance": 0.28471
}

Semantic roles & 50–950 ramp

primary

#4B90FC

secondary

#F0D8B3

accent

#8C00E6

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E1018

muted

#7E7F86

Preview Lab

Preview with #4B90FC

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

Preview Lab → · Contrast checker → · Palette generator →