#4B71DD#4B71DD

#4B71DD is a mid, vivid blue. Relative luminance 0.185; OKLCH L 57.8% C 0.170 H 266.5°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#4B71DD
RGB	rgb(75, 113, 221)
HSL	hsl(224, 68%, 58%)
HSV	hsv(224, 66%, 87%)
CMYK	cmyk(66.1%, 48.9%, 0%, 13.3%)
CIE-LAB	lab(50.13, 21.29, -59.27)
CIE-LCH	lch(50.13, 62.98, 289.75°)
OKLab	oklab(57.77% -0.0103 -0.1699)
OKLCH	oklch(57.77% 0.17 266.5)
XYZ	xyz(21.8534, 18.5245, 70.8165)
Luminance	0.1853 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B71DD #DDB74B

analogous

#4BBADD #4B71DD #6E4BDD

triadic

#4B71DD #DD4B71 #71DD4B

tetradic

#4B71DD #DD4BBA #DDB74B #4BDD6E

square

#4B71DD #DD4BBA #DDB74B #4BDD6E

split-complementary

#4B71DD #DD6E4B #BADD4B

monochromatic

#1C3A92 #254FC5 #4B71DD #7E9AE7 #B2C2F0

Accessibility & contrast

On white

4.46

#4B71DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#4B71DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B71DD

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B71DD	#FFFFFF	#000000	##000000
##4B71DD	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#367EE1

Deuteranopia (green-blind)

#0A71DB

Tritanopia (blue-blind)

#008A9C

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4b71dd;
/* rgb */ color: rgb(75, 113, 221);
/* oklch */ color: oklch(57.8% 0.170 266.5);

Tailwind

colors: {
  custom: {
    50: '#8c99e8',
    500: '#4b71dd',
    950: '#000000',
  },
}

SCSS

$custom: #4b71dd;
$custom-light: #8c99e8;
$custom-dark: #000000;

JSON

{
  "hex": "#4b71dd",
  "rgb": {
    "r": 75,
    "g": 113,
    "b": 221
  },
  "hsl": {
    "h": 224.384,
    "s": 68.224,
    "l": 58.039
  },
  "oklch": {
    "l": 0.57767,
    "c": 0.17023,
    "h": 266.5
  },
  "luminance": 0.18527
}

Semantic roles & 50–950 ramp

primary

#4B71DD

secondary

#DFD0A5

accent

#BE3DEB

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4B71DD

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

Preview Lab → · Contrast checker → · Palette generator →