#42319F#42319F

#42319F is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.5% C 0.169 H 282.9°. Best body text is #FFFFFF at 9.67:1 contrast (WCAG AA passes).

Color values

HEX	#42319F
RGB	rgb(66, 49, 159)
HSL	hsl(249, 53%, 41%)
HSV	hsv(249, 69%, 62%)
CMYK	cmyk(58.5%, 69.2%, 0%, 37.6%)
CIE-LAB	lab(29.05, 38.68, -57.24)
CIE-LCH	lch(29.05, 69.08, 304.05°)
OKLab	oklab(40.5% 0.0376 -0.1647)
OKLCH	oklch(40.5% 0.169 282.9)
XYZ	xyz(9.6012, 5.8575, 33.4188)
Luminance	0.0586 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.55

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42319F #8E9F31

analogous

#31579F #42319F #79319F

triadic

#42319F #9F4231 #319F42

tetradic

#42319F #9F3157 #8E9F31 #319F79

square

#42319F #9F3157 #8E9F31 #319F79

split-complementary

#42319F #9F7931 #579F31

monochromatic

#1B1441 #2F2370 #42319F #5B47C6 #8476D5

Accessibility & contrast

On white

9.67

#42319F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#42319F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42319F

9.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42319F	#FFFFFF	#000000	##FFFFFF
##42319F	1.00	9.67	2.17	9.67
#FFFFFF	9.67	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A2

Deuteranopia (green-blind)

#00419D

Tritanopia (blue-blind)

#0D4E64

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #42319f;
/* rgb */ color: rgb(66, 49, 159);
/* oklch */ color: oklch(40.5% 0.169 282.9);

Tailwind

colors: {
  custom: {
    50: '#816bbc',
    500: '#42319f',
    950: '#000000',
  },
}

SCSS

$custom: #42319f;
$custom-light: #816bbc;
$custom-dark: #000000;

JSON

{
  "hex": "#42319f",
  "rgb": {
    "r": 66,
    "g": 49,
    "b": 159
  },
  "hsl": {
    "h": 249.273,
    "s": 52.885,
    "l": 40.784
  },
  "oklch": {
    "l": 0.40496,
    "c": 0.16898,
    "h": 282.9
  },
  "luminance": 0.05858
}

Semantic roles & 50–950 ramp

primary

#42319F

secondary

#B1BD6F

accent

#DC4CC6

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #42319F

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

Preview Lab → · Contrast checker → · Palette generator →