#4339BB#4339BB

#4339BB is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.4% C 0.195 H 278.3°. Best body text is #FFFFFF at 8.26:1 contrast (WCAG AA passes).

Color values

HEX	#4339BB
RGB	rgb(67, 57, 187)
HSL	hsl(245, 53%, 48%)
HSV	hsv(245, 70%, 73%)
CMYK	cmyk(64.2%, 69.5%, 0%, 26.7%)
CIE-LAB	lab(33.36, 43.14, -66.91)
CIE-LCH	lch(33.36, 79.62, 302.81°)
OKLab	oklab(44.39% 0.0282 -0.1931)
OKLCH	oklch(44.39% 0.195 278.3)
XYZ	xyz(12.7446, 7.7064, 47.8199)
Luminance	0.0771 (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

#4339BB #B1BB39

analogous

#3970BB #4339BB #8439BB

triadic

#4339BB #BB4339 #39BB43

tetradic

#4339BB #BB3970 #B1BB39 #39BB84

square

#4339BB #BB3970 #B1BB39 #39BB84

split-complementary

#4339BB #BB8439 #70BB39

monochromatic

#211C5D #322B8C #4339BB #6A62CF #9791DD

Accessibility & contrast

On white

8.26

#4339BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#4339BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4339BB

8.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4339BB	#FFFFFF	#000000	##FFFFFF
##4339BB	1.00	8.26	2.54	8.26
#FFFFFF	8.26	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054BF

Deuteranopia (green-blind)

#0049B9

Tritanopia (blue-blind)

#005C76

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #4339bb;
/* rgb */ color: rgb(67, 57, 187);
/* oklch */ color: oklch(44.4% 0.195 278.3);

Tailwind

colors: {
  custom: {
    50: '#8671d1',
    500: '#4339bb',
    950: '#000000',
  },
}

SCSS

$custom: #4339bb;
$custom-light: #8671d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4339bb",
  "rgb": {
    "r": 67,
    "g": 57,
    "b": 187
  },
  "hsl": {
    "h": 244.615,
    "s": 53.279,
    "l": 47.843
  },
  "oklch": {
    "l": 0.4439,
    "c": 0.19511,
    "h": 278.3
  },
  "luminance": 0.07707
}

Semantic roles & 50–950 ramp

primary

#4339BB

secondary

#C3C887

accent

#DD4BD1

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #4339BB

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

Preview Lab → · Contrast checker → · Palette generator →