#4340AB#4340AB

#4340AB is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.1% C 0.166 H 278.4°. Best body text is #FFFFFF at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#4340AB
RGB	rgb(67, 64, 171)
HSL	hsl(242, 46%, 46%)
HSV	hsv(242, 63%, 67%)
CMYK	cmyk(60.8%, 62.6%, 0%, 32.9%)
CIE-LAB	lab(33.56, 33.65, -57.09)
CIE-LCH	lch(33.56, 66.27, 300.51°)
OKLab	oklab(44.11% 0.0242 -0.1642)
OKLCH	oklch(44.11% 0.166 278.4)
XYZ	xyz(11.4965, 7.7995, 39.4198)
Luminance	0.0780 (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

#4340AB #A8AB40

analogous

#4072AB #4340AB #7840AB

triadic

#4340AB #AB4340 #40AB43

tetradic

#4340AB #AB4072 #A8AB40 #40AB78

square

#4340AB #AB4072 #A8AB40 #40AB78

split-complementary

#4340AB #AB7840 #72AB40

monochromatic

#201F52 #322F7E #4340AB #6663C5 #9290D5

Accessibility & contrast

On white

8.20

#4340AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#4340AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4340AB

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4340AB	#FFFFFF	#000000	##FFFFFF
##4340AB	1.00	8.20	2.56	8.20
#FFFFFF	8.20	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AE

Deuteranopia (green-blind)

#004BA9

Tritanopia (blue-blind)

#005B6F

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #4340ab;
/* rgb */ color: rgb(67, 64, 171);
/* oklch */ color: oklch(44.1% 0.166 278.4);

Tailwind

colors: {
  custom: {
    50: '#8275c5',
    500: '#4340ab',
    950: '#000000',
  },
}

SCSS

$custom: #4340ab;
$custom-light: #8275c5;
$custom-dark: #000000;

JSON

{
  "hex": "#4340ab",
  "rgb": {
    "r": 67,
    "g": 64,
    "b": 171
  },
  "hsl": {
    "h": 241.682,
    "s": 45.532,
    "l": 46.078
  },
  "oklch": {
    "l": 0.44108,
    "c": 0.16602,
    "h": 278.4
  },
  "luminance": 0.078
}

Semantic roles & 50–950 ramp

primary

#4340AB

secondary

#BFC186

accent

#D553D2

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #4340AB

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

Preview Lab → · Contrast checker → · Palette generator →