#42417C#42417C

#42417C is a dark, moderate blue. Relative luminance 0.064; OKLCH L 40.7% C 0.097 H 281.9°. Best body text is #FFFFFF at 9.22:1 contrast (WCAG AA passes).

Color values

HEX	#42417C
RGB	rgb(66, 65, 124)
HSL	hsl(241, 31%, 37%)
HSV	hsv(241, 48%, 49%)
CMYK	cmyk(46.8%, 47.6%, 0%, 51.4%)
CIE-LAB	lab(30.38, 17.11, -33.51)
CIE-LCH	lch(30.38, 37.62, 297.05°)
OKLab	oklab(40.66% 0.0201 -0.0949)
OKLCH	oklch(40.66% 0.097 281.9)
XYZ	xyz(7.7741, 6.3937, 19.8894)
Luminance	0.0639 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42417C #7B7C41

analogous

#415E7C #42417C #60417C

triadic

#42417C #7C4241 #417C42

tetradic

#42417C #7C415E #7B7C41 #417C60

square

#42417C #7C415E #7B7C41 #417C60

split-complementary

#42417C #7C6041 #5E7C41

monochromatic

#17172C #2D2C54 #42417C #5756A4 #7E7DBB

Accessibility & contrast

On white

9.22

#42417C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#42417C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42417C

9.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42417C	#FFFFFF	#000000	##FFFFFF
##42417C	1.00	9.22	2.28	9.22
#FFFFFF	9.22	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#294A7E

Deuteranopia (green-blind)

#26457B

Tritanopia (blue-blind)

#2F4D58

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #42417c;
/* rgb */ color: rgb(66, 65, 124);
/* oklch */ color: oklch(40.7% 0.097 281.9);

Tailwind

colors: {
  custom: {
    50: '#7a75a2',
    500: '#42417c',
    950: '#000000',
  },
}

SCSS

$custom: #42417c;
$custom-light: #7a75a2;
$custom-dark: #000000;

JSON

{
  "hex": "#42417c",
  "rgb": {
    "r": 66,
    "g": 65,
    "b": 124
  },
  "hsl": {
    "h": 241.017,
    "s": 31.217,
    "l": 37.059
  },
  "oklch": {
    "l": 0.40656,
    "c": 0.09704,
    "h": 281.9
  },
  "luminance": 0.06394
}

Semantic roles & 50–950 ramp

primary

#42417C

secondary

#A5A573

accent

#C760C6

background

#F7F7FA

surface

#EEEDF3

border

#C9C8CD

text

#09080F

muted

#7B7B7F

Preview Lab

Preview with #42417C

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

Preview Lab → · Contrast checker → · Palette generator →