#4B71D8#4B71D8

#4B71D8 is a mid, vivid blue. Relative luminance 0.183; OKLCH L 57.4% C 0.163 H 266.2°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#4B71D8
RGB	rgb(75, 113, 216)
HSL	hsl(224, 64%, 57%)
HSV	hsv(224, 65%, 85%)
CMYK	cmyk(65.3%, 47.7%, 0%, 15.3%)
CIE-LAB	lab(49.81, 19.54, -56.95)
CIE-LCH	lch(49.81, 60.21, 288.94°)
OKLab	oklab(57.43% -0.011 -0.1631)
OKLCH	oklch(57.43% 0.163 266.2)
XYZ	xyz(21.1972, 18.2620, 67.3603)
Luminance	0.1826 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B71D8 #D8B24B

analogous

#4BB8D8 #4B71D8 #6C4BD8

triadic

#4B71D8 #D84B71 #71D84B

tetradic

#4B71D8 #D84BB8 #D8B24B #4BD86C

square

#4B71D8 #D84BB8 #D8B24B #4BD86C

split-complementary

#4B71D8 #D86C4B #B8D84B

monochromatic

#1E3B8B #2951BD #4B71D8 #7D99E3 #B0C0EE

Accessibility & contrast

On white

4.51

#4B71D8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#4B71D8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B71D8

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B71D8	#FFFFFF	#000000	##000000
##4B71D8	1.00	4.51	4.65	4.65
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B7DDC

Deuteranopia (green-blind)

#1C70D6

Tritanopia (blue-blind)

#00899A

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4b71d8;
/* rgb */ color: rgb(75, 113, 216);
/* oklch */ color: oklch(57.4% 0.163 266.2);

Tailwind

colors: {
  custom: {
    50: '#8b99e5',
    500: '#4b71d8',
    950: '#000000',
  },
}

SCSS

$custom: #4b71d8;
$custom-light: #8b99e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4b71d8",
  "rgb": {
    "r": 75,
    "g": 113,
    "b": 216
  },
  "hsl": {
    "h": 223.83,
    "s": 64.384,
    "l": 57.059
  },
  "oklch": {
    "l": 0.57427,
    "c": 0.16345,
    "h": 266.2
  },
  "luminance": 0.18264
}

Semantic roles & 50–950 ramp

primary

#4B71D8

secondary

#DCCDA3

accent

#BA40E7

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4B71D8

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

Preview Lab → · Contrast checker → · Palette generator →