#42406F#42406F

#42406F is a dark, moderate blue. Relative luminance 0.060; OKLCH L 39.6% C 0.078 H 284.2°. Best body text is #FFFFFF at 9.57:1 contrast (WCAG AA passes).

Color values

HEX	#42406F
RGB	rgb(66, 64, 111)
HSL	hsl(243, 27%, 34%)
HSV	hsv(243, 42%, 44%)
CMYK	cmyk(40.5%, 42.3%, 0%, 56.5%)
CIE-LAB	lab(29.34, 13.63, -26.97)
CIE-LCH	lch(29.34, 30.22, 296.80°)
OKLab	oklab(39.62% 0.0191 -0.0758)
OKLCH	oklch(39.62% 0.078 284.2)
XYZ	xyz(6.9486, 5.9725, 15.8225)
Luminance	0.0597 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42406F #6D6F40

analogous

#40566F #42406F #5A406F

triadic

#42406F #6F4240 #406F42

tetradic

#42406F #6F4056 #6D6F40 #406F5A

square

#42406F #6F4056 #6D6F40 #406F5A

split-complementary

#42406F #6F5A40 #566F40

monochromatic

#141321 #2B2A48 #42406F #595696 #7B78B1

Accessibility & contrast

On white

9.57

#42406F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#42406F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42406F

9.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42406F	#FFFFFF	#000000	##FFFFFF
##42406F	1.00	9.57	2.19	9.57
#FFFFFF	9.57	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#304771

Deuteranopia (green-blind)

#2F446E

Tritanopia (blue-blind)

#354952

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #42406f;
/* rgb */ color: rgb(66, 64, 111);
/* oklch */ color: oklch(39.6% 0.078 284.2);

Tailwind

colors: {
  custom: {
    50: '#787498',
    500: '#42406f',
    950: '#000000',
  },
}

SCSS

$custom: #42406f;
$custom-light: #787498;
$custom-dark: #000000;

JSON

{
  "hex": "#42406f",
  "rgb": {
    "r": 66,
    "g": 64,
    "b": 111
  },
  "hsl": {
    "h": 242.553,
    "s": 26.857,
    "l": 34.314
  },
  "oklch": {
    "l": 0.39617,
    "c": 0.07823,
    "h": 284.2
  },
  "luminance": 0.05973
}

Semantic roles & 50–950 ramp

primary

#42406F

secondary

#9A9C6F

accent

#C365BF

background

#F7F7F9

surface

#EDEDF2

border

#C8C8CC

text

#09080E

muted

#7B7B7E

Preview Lab

Preview with #42406F

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

Preview Lab → · Contrast checker → · Palette generator →