#42389D#42389D

#42389D is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.5% C 0.158 H 281.5°. Best body text is #FFFFFF at 9.19:1 contrast (WCAG AA passes).

Color values

HEX	#42389D
RGB	rgb(66, 56, 157)
HSL	hsl(246, 47%, 42%)
HSV	hsv(246, 64%, 62%)
CMYK	cmyk(58%, 64.3%, 0%, 38.4%)
CIE-LAB	lab(30.45, 33.81, -53.74)
CIE-LCH	lch(30.45, 63.49, 302.17°)
OKLab	oklab(41.46% 0.0314 -0.1545)
OKLCH	oklch(41.46% 0.158 281.5)
XYZ	xyz(9.7448, 6.4203, 32.6175)
Luminance	0.0642 (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

#42389D #939D38

analogous

#38609D #42389D #75389D

triadic

#42389D #9D4238 #389D42

tetradic

#42389D #9D3860 #939D38 #389D75

square

#42389D #9D3860 #939D38 #389D75

split-complementary

#42389D #9D7538 #609D38

monochromatic

#1C1843 #2F2870 #42389D #5C51C1 #877ED1

Accessibility & contrast

On white

9.19

#42389D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#42389D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42389D

9.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42389D	#FFFFFF	#000000	##FFFFFF
##42389D	1.00	9.19	2.28	9.19
#FFFFFF	9.19	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA0

Deuteranopia (green-blind)

#00449B

Tritanopia (blue-blind)

#105165

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #42389d;
/* rgb */ color: rgb(66, 56, 157);
/* oklch */ color: oklch(41.5% 0.158 281.5);

Tailwind

colors: {
  custom: {
    50: '#806fbb',
    500: '#42389d',
    950: '#000000',
  },
}

SCSS

$custom: #42389d;
$custom-light: #806fbb;
$custom-dark: #000000;

JSON

{
  "hex": "#42389d",
  "rgb": {
    "r": 66,
    "g": 56,
    "b": 157
  },
  "hsl": {
    "h": 245.941,
    "s": 47.418,
    "l": 41.765
  },
  "oklch": {
    "l": 0.41456,
    "c": 0.15762,
    "h": 281.5
  },
  "luminance": 0.06421
}

Semantic roles & 50–950 ramp

primary

#42389D

secondary

#B4BA76

accent

#D751CA

background

#F8F6FB

surface

#EFECF6

border

#CAC7D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #42389D

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

Preview Lab → · Contrast checker → · Palette generator →