#42459E#42459E

#42459E is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.9% C 0.142 H 277.4°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#42459E
RGB	rgb(66, 69, 158)
HSL	hsl(238, 41%, 44%)
HSV	hsv(238, 58%, 62%)
CMYK	cmyk(58.2%, 56.3%, 0%, 38%)
CIE-LAB	lab(33.74, 25.87, -49.01)
CIE-LCH	lch(33.74, 55.41, 297.83°)
OKLab	oklab(43.91% 0.0182 -0.1405)
OKLCH	oklch(43.91% 0.142 277.4)
XYZ	xyz(10.5445, 7.8824, 33.3069)
Luminance	0.0788 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42459E #9E9B42

analogous

#42739E #42459E #6D429E

triadic

#42459E #9E4245 #459E42

tetradic

#42459E #9E4273 #9E9B42 #429E6D

square

#42459E #9E4273 #9E9B42 #429E6D

split-complementary

#42459E #9E6D42 #739E42

monochromatic

#1E1F48 #303273 #42459E #6063BD #8C8ECF

Accessibility & contrast

On white

8.15

#42459E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#42459E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42459E

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42459E	#FFFFFF	#000000	##FFFFFF
##42459E	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0353A1

Deuteranopia (green-blind)

#004C9C

Tritanopia (blue-blind)

#095A6A

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #42459e;
/* rgb */ color: rgb(66, 69, 158);
/* oklch */ color: oklch(43.9% 0.142 277.4);

Tailwind

colors: {
  custom: {
    50: '#7f78bb',
    500: '#42459e',
    950: '#000000',
  },
}

SCSS

$custom: #42459e;
$custom-light: #7f78bb;
$custom-dark: #000000;

JSON

{
  "hex": "#42459e",
  "rgb": {
    "r": 66,
    "g": 69,
    "b": 158
  },
  "hsl": {
    "h": 238.043,
    "s": 41.071,
    "l": 43.922
  },
  "oklch": {
    "l": 0.43905,
    "c": 0.14163,
    "h": 277.4
  },
  "luminance": 0.07883
}

Semantic roles & 50–950 ramp

primary

#42459E

secondary

#BAB882

accent

#CD57D1

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #42459E

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

Preview Lab → · Contrast checker → · Palette generator →