#4B71E1#4B71E1

#4B71E1 is a mid, vivid blue. Relative luminance 0.187; OKLCH L 58.0% C 0.176 H 266.8°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#4B71E1
RGB	rgb(75, 113, 225)
HSL	hsl(225, 71%, 59%)
HSV	hsv(225, 67%, 88%)
CMYK	cmyk(66.7%, 49.8%, 0%, 11.8%)
CIE-LAB	lab(50.38, 22.68, -61.12)
CIE-LCH	lch(50.38, 65.19, 290.36°)
OKLab	oklab(58.04% -0.0099 -0.1753)
OKLCH	oklch(58.04% 0.176 266.8)
XYZ	xyz(22.3927, 18.7402, 73.6567)
Luminance	0.1874 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B71E1 #E1BB4B

analogous

#4BBCE1 #4B71E1 #704BE1

triadic

#4B71E1 #E14B71 #71E14B

tetradic

#4B71E1 #E14BBC #E1BB4B #4BE170

square

#4B71E1 #E14BBC #E1BB4B #4BE170

split-complementary

#4B71E1 #E1704B #BCE14B

monochromatic

#193A98 #224DCD #4B71E1 #7F9AEA #B4C4F2

Accessibility & contrast

On white

4.42

#4B71E1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#4B71E1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B71E1

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B71E1	#FFFFFF	#000000	##000000
##4B71E1	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#317FE5

Deuteranopia (green-blind)

#0071DF

Tritanopia (blue-blind)

#008B9E

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4b71e1;
/* rgb */ color: rgb(75, 113, 225);
/* oklch */ color: oklch(58.0% 0.176 266.8);

Tailwind

colors: {
  custom: {
    50: '#8d99eb',
    500: '#4b71e1',
    950: '#000000',
  },
}

SCSS

$custom: #4b71e1;
$custom-light: #8d99eb;
$custom-dark: #000000;

JSON

{
  "hex": "#4b71e1",
  "rgb": {
    "r": 75,
    "g": 113,
    "b": 225
  },
  "hsl": {
    "h": 224.8,
    "s": 71.429,
    "l": 58.824
  },
  "oklch": {
    "l": 0.58043,
    "c": 0.17563,
    "h": 266.8
  },
  "luminance": 0.18742
}

Semantic roles & 50–950 ramp

primary

#4B71E1

secondary

#E1D2A6

accent

#C03AEE

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4B71E1

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

Preview Lab → · Contrast checker → · Palette generator →