#42407E#42407E

#42407E is a dark, moderate blue. Relative luminance 0.063; OKLCH L 40.6% C 0.102 H 282.3°. Best body text is #FFFFFF at 9.27:1 contrast (WCAG AA passes).

Color values

HEX	#42407E
RGB	rgb(66, 64, 126)
HSL	hsl(242, 33%, 37%)
HSV	hsv(242, 49%, 49%)
CMYK	cmyk(47.6%, 49.2%, 0%, 50.6%)
CIE-LAB	lab(30.23, 18.42, -35.00)
CIE-LCH	lch(30.23, 39.55, 297.76°)
OKLab	oklab(40.58% 0.0217 -0.0993)
OKLCH	oklch(40.58% 0.102 282.3)
XYZ	xyz(7.8449, 6.3310, 20.5433)
Luminance	0.0633 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42407E #7C7E40

analogous

#405D7E #42407E #61407E

triadic

#42407E #7E4240 #407E42

tetradic

#42407E #7E405D #7C7E40 #407E61

square

#42407E #7E405D #7C7E40 #407E61

split-complementary

#42407E #7E6140 #5D7E40

monochromatic

#17172D #2D2B55 #42407E #5755A7 #7E7CBC

Accessibility & contrast

On white

9.27

#42407E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#42407E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42407E

9.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42407E	#FFFFFF	#000000	##FFFFFF
##42407E	1.00	9.27	2.27	9.27
#FFFFFF	9.27	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#264980

Deuteranopia (green-blind)

#23457D

Tritanopia (blue-blind)

#2E4D59

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #42407e;
/* rgb */ color: rgb(66, 64, 126);
/* oklch */ color: oklch(40.6% 0.102 282.3);

Tailwind

colors: {
  custom: {
    50: '#7a74a4',
    500: '#42407e',
    950: '#000000',
  },
}

SCSS

$custom: #42407e;
$custom-light: #7a74a4;
$custom-dark: #000000;

JSON

{
  "hex": "#42407e",
  "rgb": {
    "r": 66,
    "g": 64,
    "b": 126
  },
  "hsl": {
    "h": 241.935,
    "s": 32.632,
    "l": 37.255
  },
  "oklch": {
    "l": 0.40581,
    "c": 0.10167,
    "h": 282.3
  },
  "luminance": 0.06331
}

Semantic roles & 50–950 ramp

primary

#42407E

secondary

#A5A773

accent

#C95FC5

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#09080F

muted

#7B7B7F

Preview Lab

Preview with #42407E

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

Preview Lab → · Contrast checker → · Palette generator →