#4F40AB#4F40AB

#4F40AB is a mid, vivid blue. Relative luminance 0.083; OKLCH L 45.1% C 0.164 H 284.0°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#4F40AB
RGB	rgb(79, 64, 171)
HSL	hsl(248, 46%, 46%)
HSV	hsv(248, 63%, 67%)
CMYK	cmyk(53.8%, 62.6%, 0%, 32.9%)
CIE-LAB	lab(34.54, 35.80, -55.46)
CIE-LCH	lch(34.54, 66.02, 302.84°)
OKLab	oklab(45.07% 0.0398 -0.1591)
OKLCH	oklch(45.07% 0.164 284)
XYZ	xyz(12.4063, 8.2686, 39.4625)
Luminance	0.0827 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F40AB #9CAB40

analogous

#4066AB #4F40AB #8440AB

triadic

#4F40AB #AB4F40 #40AB4F

tetradic

#4F40AB #AB4066 #9CAB40 #40AB84

square

#4F40AB #AB4066 #9CAB40 #40AB84

split-complementary

#4F40AB #AB8440 #66AB40

monochromatic

#261F52 #3A2F7E #4F40AB #7163C5 #9A90D5

Accessibility & contrast

On white

7.91

#4F40AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#4F40AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4F40AB

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F40AB	#FFFFFF	#000000	##FFFFFF
##4F40AB	1.00	7.91	2.65	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054AE

Deuteranopia (green-blind)

#004EA9

Tritanopia (blue-blind)

#285A6F

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #4f40ab;
/* rgb */ color: rgb(79, 64, 171);
/* oklch */ color: oklch(45.1% 0.164 284.0);

Tailwind

colors: {
  custom: {
    50: '#8975c5',
    500: '#4f40ab',
    950: '#000000',
  },
}

SCSS

$custom: #4f40ab;
$custom-light: #8975c5;
$custom-dark: #000000;

JSON

{
  "hex": "#4f40ab",
  "rgb": {
    "r": 79,
    "g": 64,
    "b": 171
  },
  "hsl": {
    "h": 248.411,
    "s": 45.532,
    "l": 46.078
  },
  "oklch": {
    "l": 0.45066,
    "c": 0.16401,
    "h": 284
  },
  "luminance": 0.08269
}

Semantic roles & 50–950 ramp

primary

#4F40AB

secondary

#B8C186

accent

#D553C3

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #4F40AB

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

Preview Lab → · Contrast checker → · Palette generator →