#42477E#42477E

#42477E is a dark, moderate blue. Relative luminance 0.072; OKLCH L 42.1% C 0.091 H 277.8°. Best body text is #FFFFFF at 8.63:1 contrast (WCAG AA passes).

Color values

HEX	#42477E
RGB	rgb(66, 71, 126)
HSL	hsl(235, 31%, 38%)
HSV	hsv(235, 48%, 49%)
CMYK	cmyk(47.6%, 43.7%, 0%, 50.6%)
CIE-LAB	lab(32.19, 13.79, -31.88)
CIE-LCH	lch(32.19, 34.73, 293.39°)
OKLab	oklab(42.07% 0.0123 -0.0901)
OKLCH	oklch(42.07% 0.091 277.8)
XYZ	xyz(8.2648, 7.1707, 20.6832)
Luminance	0.0717 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42477E #7E7942

analogous

#42657E #42477E #5B427E

triadic

#42477E #7E4247 #477E42

tetradic

#42477E #7E4265 #7E7942 #427E5B

square

#42477E #7E4265 #7E7942 #427E5B

split-complementary

#42477E #7E5B42 #657E42

monochromatic

#181A2E #2D3056 #42477E #575EA6 #7F84BC

Accessibility & contrast

On white

8.63

#42477E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#42477E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42477E

8.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42477E	#FFFFFF	#000000	##FFFFFF
##42477E	1.00	8.63	2.43	8.63
#FFFFFF	8.63	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#324E80

Deuteranopia (green-blind)

#2D497D

Tritanopia (blue-blind)

#2D525C

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #42477e;
/* rgb */ color: rgb(66, 71, 126);
/* oklch */ color: oklch(42.1% 0.091 277.8);

Tailwind

colors: {
  custom: {
    50: '#7a7aa4',
    500: '#42477e',
    950: '#000000',
  },
}

SCSS

$custom: #42477e;
$custom-light: #7a7aa4;
$custom-dark: #000000;

JSON

{
  "hex": "#42477e",
  "rgb": {
    "r": 66,
    "g": 71,
    "b": 126
  },
  "hsl": {
    "h": 235,
    "s": 31.25,
    "l": 37.647
  },
  "oklch": {
    "l": 0.42069,
    "c": 0.09099,
    "h": 277.8
  },
  "luminance": 0.07171
}

Semantic roles & 50–950 ramp

primary

#42477E

secondary

#A7A375

accent

#BF60C7

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#09090F

muted

#7B7B7F

Preview Lab

Preview with #42477E

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

Preview Lab → · Contrast checker → · Palette generator →