#4C59CB#4C59CB

#4C59CB is a mid, vivid blue. Relative luminance 0.130; OKLCH L 51.8% C 0.175 H 273.7°. Best body text is #FFFFFF at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#4C59CB
RGB	rgb(76, 89, 203)
HSL	hsl(234, 55%, 55%)
HSV	hsv(234, 63%, 80%)
CMYK	cmyk(62.6%, 56.2%, 0%, 20.4%)
CIE-LAB	lab(42.75, 30.28, -60.91)
CIE-LCH	lch(42.75, 68.02, 296.44°)
OKLab	oklab(51.83% 0.0113 -0.175)
OKLCH	oklch(51.83% 0.175 273.7)
XYZ	xyz(17.3288, 12.9916, 58.0828)
Luminance	0.1299 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C59CB #CBBE4C

analogous

#4C99CB #4C59CB #7E4CCB

triadic

#4C59CB #CB4C59 #59CB4C

tetradic

#4C59CB #CB4C99 #CBBE4C #4CCB7E

square

#4C59CB #CB4C99 #CBBE4C #4CCB7E

split-complementary

#4C59CB #CB7E4C #99CB4C

monochromatic

#232C79 #313DA9 #4C59CB #7B85D9 #ABB1E7

Accessibility & contrast

On white

5.84

#4C59CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#4C59CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C59CB

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C59CB	#FFFFFF	#000000	##FFFFFF
##4C59CB	1.00	5.84	3.60	5.84
#FFFFFF	5.84	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BCF

Deuteranopia (green-blind)

#0060C9

Tritanopia (blue-blind)

#007489

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #4c59cb;
/* rgb */ color: rgb(76, 89, 203);
/* oklch */ color: oklch(51.8% 0.175 273.7);

Tailwind

colors: {
  custom: {
    50: '#8b87dc',
    500: '#4c59cb',
    950: '#000000',
  },
}

SCSS

$custom: #4c59cb;
$custom-light: #8b87dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4c59cb",
  "rgb": {
    "r": 76,
    "g": 89,
    "b": 203
  },
  "hsl": {
    "h": 233.858,
    "s": 54.978,
    "l": 54.706
  },
  "oklch": {
    "l": 0.51832,
    "c": 0.17538,
    "h": 273.7
  },
  "luminance": 0.12993
}

Semantic roles & 50–950 ramp

primary

#4C59CB

secondary

#D4CF9F

accent

#CF49DE

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4C59CB

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

Preview Lab → · Contrast checker → · Palette generator →