#4340AC#4340AC

#4340AC is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.2% C 0.167 H 278.3°. Best body text is #FFFFFF at 8.18:1 contrast (WCAG AA passes).

Color values

HEX	#4340AC
RGB	rgb(67, 64, 172)
HSL	hsl(242, 46%, 46%)
HSV	hsv(242, 63%, 67%)
CMYK	cmyk(61%, 62.8%, 0%, 32.5%)
CIE-LAB	lab(33.64, 33.98, -57.56)
CIE-LCH	lch(33.64, 66.84, 300.56°)
OKLab	oklab(44.19% 0.0241 -0.1656)
OKLCH	oklch(44.19% 0.167 278.3)
XYZ	xyz(11.5921, 7.8378, 39.9237)
Luminance	0.0784 (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

#4340AC #A9AC40

analogous

#4073AC #4340AC #7940AC

triadic

#4340AC #AC4340 #40AC43

tetradic

#4340AC #AC4073 #A9AC40 #40AC79

square

#4340AC #AC4073 #A9AC40 #40AC79

split-complementary

#4340AC #AC7940 #73AC40

monochromatic

#201F53 #322F7F #4340AC #6764C5 #9291D6

Accessibility & contrast

On white

8.18

#4340AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#4340AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4340AC

8.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4340AC	#FFFFFF	#000000	##FFFFFF
##4340AC	1.00	8.18	2.57	8.18
#FFFFFF	8.18	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054AF

Deuteranopia (green-blind)

#004BAA

Tritanopia (blue-blind)

#005B70

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #4340ac;
/* rgb */ color: rgb(67, 64, 172);
/* oklch */ color: oklch(44.2% 0.167 278.3);

Tailwind

colors: {
  custom: {
    50: '#8275c6',
    500: '#4340ac',
    950: '#000000',
  },
}

SCSS

$custom: #4340ac;
$custom-light: #8275c6;
$custom-dark: #000000;

JSON

{
  "hex": "#4340ac",
  "rgb": {
    "r": 67,
    "g": 64,
    "b": 172
  },
  "hsl": {
    "h": 241.667,
    "s": 45.763,
    "l": 46.275
  },
  "oklch": {
    "l": 0.44193,
    "c": 0.16737,
    "h": 278.3
  },
  "luminance": 0.07839
}

Semantic roles & 50–950 ramp

primary

#4340AC

secondary

#BFC187

accent

#D552D2

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #4340AC

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

Preview Lab → · Contrast checker → · Palette generator →