#42477B#42477B

#42477B is a dark, moderate blue. Relative luminance 0.071; OKLCH L 41.9% C 0.086 H 277.8°. Best body text is #FFFFFF at 8.68:1 contrast (WCAG AA passes).

Color values

HEX	#42477B
RGB	rgb(66, 71, 123)
HSL	hsl(235, 30%, 37%)
HSV	hsv(235, 46%, 48%)
CMYK	cmyk(46.3%, 42.3%, 0%, 51.8%)
CIE-LAB	lab(32.02, 12.81, -30.28)
CIE-LCH	lch(32.02, 32.88, 292.93°)
OKLab	oklab(41.88% 0.0117 -0.0855)
OKLCH	oklch(41.88% 0.086 277.8)
XYZ	xyz(8.0741, 7.0944, 19.6790)
Luminance	0.0709 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42477B #7B7642

analogous

#42647B #42477B #5A427B

triadic

#42477B #7B4247 #477B42

tetradic

#42477B #7B4264 #7B7642 #427B5A

square

#42477B #7B4264 #7B7642 #427B5A

split-complementary

#42477B #7B5A42 #647B42

monochromatic

#17192B #2D3053 #42477B #575EA3 #7E83BA

Accessibility & contrast

On white

8.68

#42477B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#42477B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42477B

8.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42477B	#FFFFFF	#000000	##FFFFFF
##42477B	1.00	8.68	2.42	8.68
#FFFFFF	8.68	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#344E7D

Deuteranopia (green-blind)

#30497A

Tritanopia (blue-blind)

#2F525B

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #42477b;
/* rgb */ color: rgb(66, 71, 123);
/* oklch */ color: oklch(41.9% 0.086 277.8);

Tailwind

colors: {
  custom: {
    50: '#7a7aa1',
    500: '#42477b',
    950: '#000000',
  },
}

SCSS

$custom: #42477b;
$custom-light: #7a7aa1;
$custom-dark: #000000;

JSON

{
  "hex": "#42477b",
  "rgb": {
    "r": 66,
    "g": 71,
    "b": 123
  },
  "hsl": {
    "h": 234.737,
    "s": 30.159,
    "l": 37.059
  },
  "oklch": {
    "l": 0.41882,
    "c": 0.08629,
    "h": 277.8
  },
  "luminance": 0.07095
}

Semantic roles & 50–950 ramp

primary

#42477B

secondary

#A5A074

accent

#BE61C6

background

#F7F7F9

surface

#EEEDF2

border

#C9C8CC

text

#09090F

muted

#7B7B7E

Preview Lab

Preview with #42477B

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

Preview Lab → · Contrast checker → · Palette generator →