#4B58BB#4B58BB

#4B58BB is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.4% C 0.155 H 273.8°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#4B58BB
RGB	rgb(75, 88, 187)
HSL	hsl(233, 45%, 51%)
HSV	hsv(233, 60%, 73%)
CMYK	cmyk(59.9%, 52.9%, 0%, 26.7%)
CIE-LAB	lab(41.31, 25.29, -53.95)
CIE-LCH	lch(41.31, 59.58, 295.12°)
OKLab	oklab(50.39% 0.0104 -0.1546)
OKLCH	oklch(50.39% 0.155 273.8)
XYZ	xyz(15.3581, 12.0620, 48.5229)
Luminance	0.1206 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B58BB #BBAE4B

analogous

#4B90BB #4B58BB #764BBB

triadic

#4B58BB #BB4B58 #58BB4B

tetradic

#4B58BB #BB4B90 #BBAE4B #4BBB76

square

#4B58BB #BB4B90 #BBAE4B #4BBB76

split-complementary

#4B58BB #BB764B #90BB4B

monochromatic

#262E65 #374292 #4B58BB #7781CC #A4AADD

Accessibility & contrast

On white

6.15

#4B58BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#4B58BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B58BB

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B58BB	#FFFFFF	#000000	##FFFFFF
##4B58BB	1.00	6.15	3.41	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C66BE

Deuteranopia (green-blind)

#005DB9

Tritanopia (blue-blind)

#006F81

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4b58bb;
/* rgb */ color: rgb(75, 88, 187);
/* oklch */ color: oklch(50.4% 0.155 273.8);

Tailwind

colors: {
  custom: {
    50: '#8787d0',
    500: '#4b58bb',
    950: '#000000',
  },
}

SCSS

$custom: #4b58bb;
$custom-light: #8787d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4b58bb",
  "rgb": {
    "r": 75,
    "g": 88,
    "b": 187
  },
  "hsl": {
    "h": 233.036,
    "s": 45.161,
    "l": 51.373
  },
  "oklch": {
    "l": 0.50385,
    "c": 0.15493,
    "h": 273.8
  },
  "luminance": 0.12063
}

Semantic roles & 50–950 ramp

primary

#4B58BB

secondary

#CAC498

accent

#C653D5

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #4B58BB

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

Preview Lab → · Contrast checker → · Palette generator →