#43399B#43399B

#43399B is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.5% C 0.153 H 282.0°. Best body text is #FFFFFF at 9.14:1 contrast (WCAG AA passes).

Color values

HEX	#43399B
RGB	rgb(67, 57, 155)
HSL	hsl(246, 46%, 42%)
HSV	hsv(246, 63%, 61%)
CMYK	cmyk(56.8%, 63.2%, 0%, 39.2%)
CIE-LAB	lab(30.61, 32.71, -52.26)
CIE-LCH	lch(30.61, 61.66, 302.04°)
OKLab	oklab(41.54% 0.0319 -0.1501)
OKLCH	oklch(41.54% 0.153 282)
XYZ	xyz(9.6924, 6.4855, 31.7451)
Luminance	0.0649 (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

#43399B #919B39

analogous

#39609B #43399B #74399B

triadic

#43399B #9B4339 #399B43

tetradic

#43399B #9B3960 #919B39 #399B74

square

#43399B #9B3960 #919B39 #399B74

split-complementary

#43399B #9B7439 #609B39

monochromatic

#1C1842 #30296E #43399B #5D52BF #877FD0

Accessibility & contrast

On white

9.14

#43399B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#43399B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #43399B

9.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##43399B	#FFFFFF	#000000	##FFFFFF
##43399B	1.00	9.14	2.30	9.14
#FFFFFF	9.14	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9E

Deuteranopia (green-blind)

#004599

Tritanopia (blue-blind)

#175164

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #43399b;
/* rgb */ color: rgb(67, 57, 155);
/* oklch */ color: oklch(41.5% 0.153 282.0);

Tailwind

colors: {
  custom: {
    50: '#8070b9',
    500: '#43399b',
    950: '#000000',
  },
}

SCSS

$custom: #43399b;
$custom-light: #8070b9;
$custom-dark: #000000;

JSON

{
  "hex": "#43399b",
  "rgb": {
    "r": 67,
    "g": 57,
    "b": 155
  },
  "hsl": {
    "h": 246.122,
    "s": 46.226,
    "l": 41.569
  },
  "oklch": {
    "l": 0.4154,
    "c": 0.15345,
    "h": 282
  },
  "luminance": 0.06486
}

Semantic roles & 50–950 ramp

primary

#43399B

secondary

#B2B977

accent

#D652C8

background

#F8F6FB

surface

#EFECF6

border

#CAC7D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #43399B

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

Preview Lab → · Contrast checker → · Palette generator →