#4B71D9#4B71D9

#4B71D9 is a mid, vivid blue. Relative luminance 0.183; OKLCH L 57.5% C 0.165 H 266.2°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#4B71D9
RGB	rgb(75, 113, 217)
HSL	hsl(224, 65%, 57%)
HSV	hsv(224, 65%, 85%)
CMYK	cmyk(65.4%, 47.9%, 0%, 14.9%)
CIE-LAB	lab(49.87, 19.89, -57.41)
CIE-LCH	lch(49.87, 60.76, 289.11°)
OKLab	oklab(57.49% -0.0108 -0.1645)
OKLCH	oklch(57.49% 0.165 266.2)
XYZ	xyz(21.3268, 18.3139, 68.0432)
Luminance	0.1832 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B71D9 #D9B34B

analogous

#4BB8D9 #4B71D9 #6C4BD9

triadic

#4B71D9 #D94B71 #71D94B

tetradic

#4B71D9 #D94BB8 #D9B34B #4BD96C

square

#4B71D9 #D94BB8 #D9B34B #4BD96C

split-complementary

#4B71D9 #D96C4B #B8D94B

monochromatic

#1E3B8C #2850BF #4B71D9 #7E99E4 #B0C1EE

Accessibility & contrast

On white

4.50

#4B71D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#4B71D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B71D9

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B71D9	#FFFFFF	#000000	##000000
##4B71D9	1.00	4.50	4.66	4.66
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A7DDD

Deuteranopia (green-blind)

#1971D7

Tritanopia (blue-blind)

#00899A

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4b71d9;
/* rgb */ color: rgb(75, 113, 217);
/* oklch */ color: oklch(57.5% 0.165 266.2);

Tailwind

colors: {
  custom: {
    50: '#8b99e5',
    500: '#4b71d9',
    950: '#000000',
  },
}

SCSS

$custom: #4b71d9;
$custom-light: #8b99e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4b71d9",
  "rgb": {
    "r": 75,
    "g": 113,
    "b": 217
  },
  "hsl": {
    "h": 223.944,
    "s": 65.138,
    "l": 57.255
  },
  "oklch": {
    "l": 0.57494,
    "c": 0.16481,
    "h": 266.2
  },
  "luminance": 0.18316
}

Semantic roles & 50–950 ramp

primary

#4B71D9

secondary

#DDCDA3

accent

#BB40E8

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4B71D9

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

Preview Lab → · Contrast checker → · Palette generator →