#4F59CB#4F59CB

#4F59CB is a mid, vivid blue. Relative luminance 0.131; OKLCH L 52.0% C 0.175 H 274.8°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#4F59CB
RGB	rgb(79, 89, 203)
HSL	hsl(235, 54%, 55%)
HSV	hsv(235, 61%, 80%)
CMYK	cmyk(61.1%, 56.2%, 0%, 20.4%)
CIE-LAB	lab(42.94, 30.79, -60.59)
CIE-LCH	lch(42.94, 67.97, 296.94°)
OKLab	oklab(52.02% 0.0146 -0.174)
OKLCH	oklch(52.02% 0.175 274.8)
XYZ	xyz(17.5728, 13.1174, 58.0942)
Luminance	0.1312 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F59CB #CBC14F

analogous

#4F97CB #4F59CB #834FCB

triadic

#4F59CB #CB4F59 #59CB4F

tetradic

#4F59CB #CB4F97 #CBC14F #4FCB83

square

#4F59CB #CB4F97 #CBC14F #4FCB83

split-complementary

#4F59CB #CB834F #97CB4F

monochromatic

#242B7B #323CAA #4F59CB #7E86D9 #ADB2E7

Accessibility & contrast

On white

5.80

#4F59CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#4F59CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F59CB

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F59CB	#FFFFFF	#000000	##FFFFFF
##4F59CB	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	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: #4f59cb;
/* rgb */ color: rgb(79, 89, 203);
/* oklch */ color: oklch(52.0% 0.175 274.8);

Tailwind

colors: {
  custom: {
    50: '#8c87dc',
    500: '#4f59cb',
    950: '#000000',
  },
}

SCSS

$custom: #4f59cb;
$custom-light: #8c87dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4f59cb",
  "rgb": {
    "r": 79,
    "g": 89,
    "b": 203
  },
  "hsl": {
    "h": 235.161,
    "s": 54.386,
    "l": 55.294
  },
  "oklch": {
    "l": 0.52022,
    "c": 0.17463,
    "h": 274.8
  },
  "luminance": 0.13119
}

Semantic roles & 50–950 ramp

primary

#4F59CB

secondary

#D5D1A1

accent

#D24ADE

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4F59CB

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

Preview Lab → · Contrast checker → · Palette generator →