#42427D#42427D

#42427D is a dark, moderate blue. Relative luminance 0.065; OKLCH L 40.9% C 0.097 H 281.2°. Best body text is #FFFFFF at 9.10:1 contrast (WCAG AA passes).

Color values

HEX	#42427D
RGB	rgb(66, 66, 125)
HSL	hsl(240, 31%, 37%)
HSV	hsv(240, 47%, 49%)
CMYK	cmyk(47.2%, 47.2%, 0%, 51%)
CIE-LAB	lab(30.72, 16.77, -33.59)
CIE-LCH	lch(30.72, 37.54, 296.53°)
OKLab	oklab(40.93% 0.0189 -0.0952)
OKLCH	oklch(40.93% 0.097 281.2)
XYZ	xyz(7.8955, 6.5350, 20.2434)
Luminance	0.0654 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42427D #7D7D42

analogous

#42607D #42427D #60427D

triadic

#42427D #7D4242 #427D42

tetradic

#42427D #7D4260 #7D7D42 #427D60

square

#42427D #7D4260 #7D7D42 #427D60

split-complementary

#42427D #7D6042 #607D42

monochromatic

#18182D #2D2D55 #42427D #5757A5 #7E7EBB

Accessibility & contrast

On white

9.10

#42427D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#42427D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42427D

9.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42427D	#FFFFFF	#000000	##FFFFFF
##42427D	1.00	9.10	2.31	9.10
#FFFFFF	9.10	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A4B7F

Deuteranopia (green-blind)

#27467C

Tritanopia (blue-blind)

#2E4E59

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #42427d;
/* rgb */ color: rgb(66, 66, 125);
/* oklch */ color: oklch(40.9% 0.097 281.2);

Tailwind

colors: {
  custom: {
    50: '#7a76a3',
    500: '#42427d',
    950: '#000000',
  },
}

SCSS

$custom: #42427d;
$custom-light: #7a76a3;
$custom-dark: #000000;

JSON

{
  "hex": "#42427d",
  "rgb": {
    "r": 66,
    "g": 66,
    "b": 125
  },
  "hsl": {
    "h": 240,
    "s": 30.89,
    "l": 37.451
  },
  "oklch": {
    "l": 0.40933,
    "c": 0.09705,
    "h": 281.2
  },
  "luminance": 0.06535
}

Semantic roles & 50–950 ramp

primary

#42427D

secondary

#A6A675

accent

#C761C7

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#09080F

muted

#7B7B7F

Preview Lab

Preview with #42427D

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

Preview Lab → · Contrast checker → · Palette generator →