#43387B#43387B

#43387B is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.9% C 0.110 H 287.7°. Best body text is #FFFFFF at 10.05:1 contrast (WCAG AA passes).

Color values

HEX	#43387B
RGB	rgb(67, 56, 123)
HSL	hsl(250, 37%, 35%)
HSV	hsv(250, 54%, 48%)
CMYK	cmyk(45.5%, 54.5%, 0%, 51.8%)
CIE-LAB	lab(27.98, 22.98, -36.71)
CIE-LCH	lch(27.98, 43.31, 302.04°)
OKLab	oklab(38.85% 0.0334 -0.1044)
OKLCH	oklch(38.85% 0.11 287.7)
XYZ	xyz(7.3030, 5.4514, 19.4025)
Luminance	0.0545 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#43387B #707B38

analogous

#384E7B #43387B #65387B

triadic

#43387B #7B4338 #387B43

tetradic

#43387B #7B384E #707B38 #387B65

square

#43387B #7B384E #707B38 #387B65

split-complementary

#43387B #7B6538 #4E7B38

monochromatic

#151227 #2C2551 #43387B #5A4BA5 #7C70BE

Accessibility & contrast

On white

10.05

#43387B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#43387B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #43387B

10.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##43387B	#FFFFFF	#000000	##FFFFFF
##43387B	1.00	10.05	2.09	10.05
#FFFFFF	10.05	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19447D

Deuteranopia (green-blind)

#19407A

Tritanopia (blue-blind)

#324654

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #43387b;
/* rgb */ color: rgb(67, 56, 123);
/* oklch */ color: oklch(38.9% 0.110 287.7);

Tailwind

colors: {
  custom: {
    50: '#7b6fa2',
    500: '#43387b',
    950: '#000000',
  },
}

SCSS

$custom: #43387b;
$custom-light: #7b6fa2;
$custom-dark: #000000;

JSON

{
  "hex": "#43387b",
  "rgb": {
    "r": 67,
    "g": 56,
    "b": 123
  },
  "hsl": {
    "h": 249.851,
    "s": 37.43,
    "l": 35.098
  },
  "oklch": {
    "l": 0.38853,
    "c": 0.10957,
    "h": 287.7
  },
  "luminance": 0.05452
}

Semantic roles & 50–950 ramp

primary

#43387B

secondary

#9CA768

accent

#CD5ABB

background

#F7F6FA

surface

#EEECF3

border

#C9C7CD

text

#0A070F

muted

#7C7A7F

Preview Lab

Preview with #43387B

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

Preview Lab → · Contrast checker → · Palette generator →