#4B58CB#4B58CB

#4B58CB is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.6% C 0.177 H 273.6°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#4B58CB
RGB	rgb(75, 88, 203)
HSL	hsl(234, 55%, 55%)
HSV	hsv(234, 63%, 80%)
CMYK	cmyk(63.1%, 56.7%, 0%, 20.4%)
CIE-LAB	lab(42.44, 30.74, -61.42)
CIE-LCH	lch(42.44, 68.68, 296.59°)
OKLab	oklab(51.58% 0.0111 -0.1766)
OKLCH	oklch(51.58% 0.177 273.6)
XYZ	xyz(17.1673, 12.7857, 58.0515)
Luminance	0.1279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B58CB #CBBE4B

analogous

#4B98CB #4B58CB #7E4BCB

triadic

#4B58CB #CB4B58 #58CB4B

tetradic

#4B58CB #CB4B98 #CBBE4B #4BCB7E

square

#4B58CB #CB4B98 #CBBE4B #4BCB7E

split-complementary

#4B58CB #CB7E4B #98CB4B

monochromatic

#232C79 #313DA8 #4B58CB #7A84D9 #AAB0E6

Accessibility & contrast

On white

5.90

#4B58CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#4B58CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B58CB

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B58CB	#FFFFFF	#000000	##FFFFFF
##4B58CB	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ACF

Deuteranopia (green-blind)

#005FC9

Tritanopia (blue-blind)

#007489

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4b58cb;
/* rgb */ color: rgb(75, 88, 203);
/* oklch */ color: oklch(51.6% 0.177 273.6);

Tailwind

colors: {
  custom: {
    50: '#8a87dc',
    500: '#4b58cb',
    950: '#000000',
  },
}

SCSS

$custom: #4b58cb;
$custom-light: #8a87dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4b58cb",
  "rgb": {
    "r": 75,
    "g": 88,
    "b": 203
  },
  "hsl": {
    "h": 233.906,
    "s": 55.172,
    "l": 54.51
  },
  "oklch": {
    "l": 0.51583,
    "c": 0.1769,
    "h": 273.6
  },
  "luminance": 0.12787
}

Semantic roles & 50–950 ramp

primary

#4B58CB

secondary

#D4CE9E

accent

#CF49DF

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4B58CB

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

Preview Lab → · Contrast checker → · Palette generator →