#4F58CB#4F58CB

#4F58CB is a mid, vivid blue. Relative luminance 0.130; OKLCH L 51.8% C 0.176 H 275.1°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#4F58CB
RGB	rgb(79, 88, 203)
HSL	hsl(236, 54%, 55%)
HSV	hsv(236, 61%, 80%)
CMYK	cmyk(61.1%, 56.7%, 0%, 20.4%)
CIE-LAB	lab(42.69, 31.42, -61.00)
CIE-LCH	lch(42.69, 68.61, 297.25°)
OKLab	oklab(51.84% 0.0155 -0.1752)
OKLCH	oklch(51.84% 0.176 275.1)
XYZ	xyz(17.4901, 12.9521, 58.0667)
Luminance	0.1295 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F58CB #CBC24F

analogous

#4F96CB #4F58CB #844FCB

triadic

#4F58CB #CB4F58 #58CB4F

tetradic

#4F58CB #CB4F96 #CBC24F #4FCB84

square

#4F58CB #CB4F96 #CBC24F #4FCB84

split-complementary

#4F58CB #CB844F #96CB4F

monochromatic

#242B7B #323BAA #4F58CB #7E85D9 #ADB2E7

Accessibility & contrast

On white

5.85

#4F58CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#4F58CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F58CB

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F58CB	#FFFFFF	#000000	##FFFFFF
##4F58CB	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)

#006ACF

Deuteranopia (green-blind)

#0060C9

Tritanopia (blue-blind)

#007389

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #4f58cb;
/* rgb */ color: rgb(79, 88, 203);
/* oklch */ color: oklch(51.8% 0.176 275.1);

Tailwind

colors: {
  custom: {
    50: '#8c87dc',
    500: '#4f58cb',
    950: '#000000',
  },
}

SCSS

$custom: #4f58cb;
$custom-light: #8c87dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4f58cb",
  "rgb": {
    "r": 79,
    "g": 88,
    "b": 203
  },
  "hsl": {
    "h": 235.645,
    "s": 54.386,
    "l": 55.294
  },
  "oklch": {
    "l": 0.51837,
    "c": 0.1759,
    "h": 275.1
  },
  "luminance": 0.12954
}

Semantic roles & 50–950 ramp

primary

#4F58CB

secondary

#D5D1A1

accent

#D34ADE

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4F58CB

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

Preview Lab → · Contrast checker → · Palette generator →