#4B59CB#4B59CB

#4B59CB is a mid, vivid blue. Relative luminance 0.130; OKLCH L 51.8% C 0.176 H 273.3°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#4B59CB
RGB	rgb(75, 89, 203)
HSL	hsl(233, 55%, 55%)
HSV	hsv(233, 63%, 80%)
CMYK	cmyk(63.1%, 56.2%, 0%, 20.4%)
CIE-LAB	lab(42.69, 30.12, -61.01)
CIE-LCH	lch(42.69, 68.04, 296.27°)
OKLab	oklab(51.77% 0.0102 -0.1753)
OKLCH	oklch(51.77% 0.176 273.3)
XYZ	xyz(17.2499, 12.9510, 58.0791)
Luminance	0.1295 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B59CB #CBBD4B

analogous

#4B99CB #4B59CB #7D4BCB

triadic

#4B59CB #CB4B59 #59CB4B

tetradic

#4B59CB #CB4B99 #CBBD4B #4BCB7D

square

#4B59CB #CB4B99 #CBBD4B #4BCB7D

split-complementary

#4B59CB #CB7D4B #99CB4B

monochromatic

#232C79 #313EA8 #4B59CB #7A85D9 #AAB1E6

Accessibility & contrast

On white

5.85

#4B59CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#4B59CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B59CB

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B59CB	#FFFFFF	#000000	##FFFFFF
##4B59CB	1.00	5.85	3.59	5.85
#FFFFFF	5.85	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BCF

Deuteranopia (green-blind)

#005FC9

Tritanopia (blue-blind)

#007489

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #4b59cb;
/* rgb */ color: rgb(75, 89, 203);
/* oklch */ color: oklch(51.8% 0.176 273.3);

Tailwind

colors: {
  custom: {
    50: '#8a87dc',
    500: '#4b59cb',
    950: '#000000',
  },
}

SCSS

$custom: #4b59cb;
$custom-light: #8a87dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4b59cb",
  "rgb": {
    "r": 75,
    "g": 89,
    "b": 203
  },
  "hsl": {
    "h": 233.438,
    "s": 55.172,
    "l": 54.51
  },
  "oklch": {
    "l": 0.5177,
    "c": 0.17565,
    "h": 273.3
  },
  "luminance": 0.12952
}

Semantic roles & 50–950 ramp

primary

#4B59CB

secondary

#D4CE9E

accent

#CE49DF

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4B59CB

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

Preview Lab → · Contrast checker → · Palette generator →