#42407D#42407D

#42407D is a dark, moderate blue. Relative luminance 0.063; OKLCH L 40.5% C 0.100 H 282.4°. Best body text is #FFFFFF at 9.29:1 contrast (WCAG AA passes).

Color values

HEX	#42407D
RGB	rgb(66, 64, 125)
HSL	hsl(242, 32%, 37%)
HSV	hsv(242, 49%, 49%)
CMYK	cmyk(47.2%, 48.8%, 0%, 51%)
CIE-LAB	lab(30.17, 18.09, -34.47)
CIE-LCH	lch(30.17, 38.93, 297.69°)
OKLab	oklab(40.51% 0.0216 -0.0978)
OKLCH	oklch(40.51% 0.1 282.4)
XYZ	xyz(7.7807, 6.3054, 20.2051)
Luminance	0.0631 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42407D #7B7D40

analogous

#405D7D #42407D #61407D

triadic

#42407D #7D4240 #407D42

tetradic

#42407D #7D405D #7B7D40 #407D61

square

#42407D #7D405D #7B7D40 #407D61

split-complementary

#42407D #7D6140 #5D7D40

monochromatic

#17172C #2D2B55 #42407D #5755A5 #7E7CBC

Accessibility & contrast

On white

9.29

#42407D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#42407D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42407D

9.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42407D	#FFFFFF	#000000	##FFFFFF
##42407D	1.00	9.29	2.26	9.29
#FFFFFF	9.29	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27497F

Deuteranopia (green-blind)

#24457C

Tritanopia (blue-blind)

#2E4D58

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #42407d;
/* rgb */ color: rgb(66, 64, 125);
/* oklch */ color: oklch(40.5% 0.100 282.4);

Tailwind

colors: {
  custom: {
    50: '#7a74a3',
    500: '#42407d',
    950: '#000000',
  },
}

SCSS

$custom: #42407d;
$custom-light: #7a74a3;
$custom-dark: #000000;

JSON

{
  "hex": "#42407d",
  "rgb": {
    "r": 66,
    "g": 64,
    "b": 125
  },
  "hsl": {
    "h": 241.967,
    "s": 32.275,
    "l": 37.059
  },
  "oklch": {
    "l": 0.40513,
    "c": 0.10014,
    "h": 282.4
  },
  "luminance": 0.06306
}

Semantic roles & 50–950 ramp

primary

#42407D

secondary

#A5A673

accent

#C85FC5

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#09080F

muted

#7B7B7F

Preview Lab

Preview with #42407D

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

Preview Lab → · Contrast checker → · Palette generator →