#42389F#42389F

#42389F is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.6% C 0.160 H 281.2°. Best body text is #FFFFFF at 9.14:1 contrast (WCAG AA passes).

Color values

HEX	#42389F
RGB	rgb(66, 56, 159)
HSL	hsl(246, 48%, 42%)
HSV	hsv(246, 65%, 62%)
CMYK	cmyk(58.5%, 64.8%, 0%, 37.6%)
CIE-LAB	lab(30.61, 34.46, -54.68)
CIE-LCH	lch(30.61, 64.64, 302.22°)
OKLab	oklab(41.63% 0.0312 -0.1572)
OKLCH	oklch(41.63% 0.16 281.2)
XYZ	xyz(9.9170, 6.4891, 33.5241)
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

#42389F #959F38

analogous

#38629F #42389F #75389F

triadic

#42389F #9F4238 #389F42

tetradic

#42389F #9F3862 #959F38 #389F75

square

#42389F #9F3862 #959F38 #389F75

split-complementary

#42389F #9F7538 #629F38

monochromatic

#1C1844 #2F2872 #42389F #5D52C2 #877FD2

Accessibility & contrast

On white

9.14

#42389F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#42389F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42389F

9.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42389F	#FFFFFF	#000000	##FFFFFF
##42389F	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)

#004CA2

Deuteranopia (green-blind)

#00449D

Tritanopia (blue-blind)

#0B5266

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #42389f;
/* rgb */ color: rgb(66, 56, 159);
/* oklch */ color: oklch(41.6% 0.160 281.2);

Tailwind

colors: {
  custom: {
    50: '#806fbc',
    500: '#42389f',
    950: '#000000',
  },
}

SCSS

$custom: #42389f;
$custom-light: #806fbc;
$custom-dark: #000000;

JSON

{
  "hex": "#42389f",
  "rgb": {
    "r": 66,
    "g": 56,
    "b": 159
  },
  "hsl": {
    "h": 245.825,
    "s": 47.907,
    "l": 42.157
  },
  "oklch": {
    "l": 0.41628,
    "c": 0.1603,
    "h": 281.2
  },
  "luminance": 0.0649
}

Semantic roles & 50–950 ramp

primary

#42389F

secondary

#B5BB77

accent

#D750CA

background

#F8F6FB

surface

#EFECF6

border

#CAC7D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #42389F

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

Preview Lab → · Contrast checker → · Palette generator →