#42319E#42319E

#42319E is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.4% C 0.168 H 283.0°. Best body text is #FFFFFF at 9.70:1 contrast (WCAG AA passes).

Color values

HEX	#42319E
RGB	rgb(66, 49, 158)
HSL	hsl(249, 53%, 41%)
HSV	hsv(249, 69%, 62%)
CMYK	cmyk(58.2%, 69%, 0%, 38%)
CIE-LAB	lab(28.96, 38.36, -56.77)
CIE-LCH	lch(28.96, 68.52, 304.05°)
OKLab	oklab(40.41% 0.0378 -0.1634)
OKLCH	oklch(40.41% 0.168 283)
XYZ	xyz(9.5147, 5.8229, 32.9637)
Luminance	0.0582 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.67

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42319E #8D9E31

analogous

#31569E #42319E #78319E

triadic

#42319E #9E4231 #319E42

tetradic

#42319E #9E3156 #8D9E31 #319E78

square

#42319E #9E3156 #8D9E31 #319E78

split-complementary

#42319E #9E7831 #569E31

monochromatic

#1B1441 #2E236F #42319E #5A46C6 #8475D4

Accessibility & contrast

On white

9.70

#42319E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#42319E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42319E

9.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42319E	#FFFFFF	#000000	##FFFFFF
##42319E	1.00	9.70	2.16	9.70
#FFFFFF	9.70	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A1

Deuteranopia (green-blind)

#00419C

Tritanopia (blue-blind)

#0F4D63

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #42319e;
/* rgb */ color: rgb(66, 49, 158);
/* oklch */ color: oklch(40.4% 0.168 283.0);

Tailwind

colors: {
  custom: {
    50: '#806abc',
    500: '#42319e',
    950: '#000000',
  },
}

SCSS

$custom: #42319e;
$custom-light: #806abc;
$custom-dark: #000000;

JSON

{
  "hex": "#42319e",
  "rgb": {
    "r": 66,
    "g": 49,
    "b": 158
  },
  "hsl": {
    "h": 249.358,
    "s": 52.657,
    "l": 40.588
  },
  "oklch": {
    "l": 0.40405,
    "c": 0.16769,
    "h": 283
  },
  "luminance": 0.05823
}

Semantic roles & 50–950 ramp

primary

#42319E

secondary

#B0BC6E

accent

#DC4CC6

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #42319E

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

Preview Lab → · Contrast checker → · Palette generator →