#43378F#43378F

#43378F is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.2% C 0.140 H 284.4°. Best body text is #FFFFFF at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#43378F
RGB	rgb(67, 55, 143)
HSL	hsl(248, 44%, 39%)
HSV	hsv(248, 62%, 56%)
CMYK	cmyk(53.1%, 61.5%, 0%, 43.9%)
CIE-LAB	lab(29.18, 30.05, -47.23)
CIE-LCH	lch(29.18, 55.98, 302.47°)
OKLab	oklab(40.2% 0.0347 -0.1353)
OKLCH	oklch(40.2% 0.14 284.4)
XYZ	xyz(8.6374, 5.9084, 26.6666)
Luminance	0.0591 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 8.49

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#43378F #838F37

analogous

#37578F #43378F #6F378F

triadic

#43378F #8F4337 #378F43

tetradic

#43378F #8F3757 #838F37 #378F6F

square

#43378F #8F3757 #838F37 #378F6F

split-complementary

#43378F #8F6F37 #578F37

monochromatic

#1A1537 #2E2663 #43378F #594AB9 #8276CA

Accessibility & contrast

On white

9.63

#43378F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#43378F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #43378F

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##43378F	#FFFFFF	#000000	##FFFFFF
##43378F	1.00	9.63	2.18	9.63
#FFFFFF	9.63	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004792

Deuteranopia (green-blind)

#00428D

Tritanopia (blue-blind)

#254C5D

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #43378f;
/* rgb */ color: rgb(67, 55, 143);
/* oklch */ color: oklch(40.2% 0.140 284.4);

Tailwind

colors: {
  custom: {
    50: '#7e6eb0',
    500: '#43378f',
    950: '#000000',
  },
}

SCSS

$custom: #43378f;
$custom-light: #7e6eb0;
$custom-dark: #000000;

JSON

{
  "hex": "#43378f",
  "rgb": {
    "r": 67,
    "g": 55,
    "b": 143
  },
  "hsl": {
    "h": 248.182,
    "s": 44.444,
    "l": 38.824
  },
  "oklch": {
    "l": 0.40199,
    "c": 0.13971,
    "h": 284.4
  },
  "luminance": 0.05909
}

Semantic roles & 50–950 ramp

primary

#43378F

secondary

#AAB36F

accent

#D454C3

background

#F8F6FA

surface

#EFECF5

border

#CAC7CF

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #43378F

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

Preview Lab → · Contrast checker → · Palette generator →