#4340DD#4340DD

#4340DD is a mid, highly saturated blue. Relative luminance 0.101; OKLCH L 48.7% C 0.229 H 274.6°. Best body text is #FFFFFF at 6.96:1 contrast (WCAG AA passes).

Color values

HEX	#4340DD
RGB	rgb(67, 64, 221)
HSL	hsl(241, 70%, 56%)
HSV	hsv(241, 71%, 87%)
CMYK	cmyk(69.7%, 71%, 0%, 13.3%)
CIE-LAB	lab(37.98, 50.10, -79.07)
CIE-LCH	lch(37.98, 93.61, 302.36°)
OKLab	oklab(48.66% 0.0183 -0.2286)
OKLCH	oklch(48.66% 0.229 274.6)
XYZ	xyz(17.1950, 10.0789, 69.4318)
Luminance	0.1008 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.45

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4340DD #DADD40

analogous

#408CDD #4340DD #9140DD

triadic

#4340DD #DD4340 #40DD43

tetradic

#4340DD #DD408C #DADD40 #40DD91

square

#4340DD #DD408C #DADD40 #40DD91

split-complementary

#4340DD #DD9140 #8CDD40

monochromatic

#1B198A #2522BE #4340DD #7674E6 #A9A8EF

Accessibility & contrast

On white

6.96

#4340DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#4340DD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4340DD

6.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4340DD	#FFFFFF	#000000	##FFFFFF
##4340DD	1.00	6.96	3.02	6.96
#FFFFFF	6.96	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061E2

Deuteranopia (green-blind)

#0052DA

Tritanopia (blue-blind)

#006C8A

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #4340dd;
/* rgb */ color: rgb(67, 64, 221);
/* oklch */ color: oklch(48.7% 0.229 274.6);

Tailwind

colors: {
  custom: {
    50: '#8c76e9',
    500: '#4340dd',
    950: '#000000',
  },
}

SCSS

$custom: #4340dd;
$custom-light: #8c76e9;
$custom-dark: #000000;

JSON

{
  "hex": "#4340dd",
  "rgb": {
    "r": 67,
    "g": 64,
    "b": 221
  },
  "hsl": {
    "h": 241.146,
    "s": 69.778,
    "l": 55.882
  },
  "oklch": {
    "l": 0.4866,
    "c": 0.22933,
    "h": 274.6
  },
  "luminance": 0.10081
}

Semantic roles & 50–950 ramp

primary

#4340DD

secondary

#DCDD9C

accent

#ED3BE9

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0916

muted

#7E7B84

Preview Lab

Preview with #4340DD

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

Preview Lab → · Contrast checker → · Palette generator →