#42447D#42447D

#42447D is a dark, moderate blue. Relative luminance 0.068; OKLCH L 41.4% C 0.094 H 279.9°. Best body text is #FFFFFF at 8.92:1 contrast (WCAG AA passes).

Color values

HEX	#42447D
RGB	rgb(66, 68, 125)
HSL	hsl(238, 31%, 37%)
HSV	hsv(238, 47%, 49%)
CMYK	cmyk(47.2%, 45.6%, 0%, 51%)
CIE-LAB	lab(31.28, 15.44, -32.70)
CIE-LCH	lch(31.28, 36.16, 295.28°)
OKLab	oklab(41.36% 0.0162 -0.0926)
OKLCH	oklch(41.36% 0.094 279.9)
XYZ	xyz(8.0144, 6.7728, 20.2830)
Luminance	0.0677 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42447D #7D7B42

analogous

#42627D #42447D #5D427D

triadic

#42447D #7D4244 #447D42

tetradic

#42447D #7D4262 #7D7B42 #427D5D

square

#42447D #7D4262 #7D7B42 #427D5D

split-complementary

#42447D #7D5D42 #627D42

monochromatic

#18182D #2D2E55 #42447D #575AA5 #7E80BB

Accessibility & contrast

On white

8.92

#42447D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#42447D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42447D

8.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42447D	#FFFFFF	#000000	##FFFFFF
##42447D	1.00	8.92	2.35	8.92
#FFFFFF	8.92	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E4C7F

Deuteranopia (green-blind)

#2A477C

Tritanopia (blue-blind)

#2E505A

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #42447d;
/* rgb */ color: rgb(66, 68, 125);
/* oklch */ color: oklch(41.4% 0.094 279.9);

Tailwind

colors: {
  custom: {
    50: '#7a77a3',
    500: '#42447d',
    950: '#000000',
  },
}

SCSS

$custom: #42447d;
$custom-light: #7a77a3;
$custom-dark: #000000;

JSON

{
  "hex": "#42447d",
  "rgb": {
    "r": 66,
    "g": 68,
    "b": 125
  },
  "hsl": {
    "h": 237.966,
    "s": 30.89,
    "l": 37.451
  },
  "oklch": {
    "l": 0.41358,
    "c": 0.09397,
    "h": 279.9
  },
  "luminance": 0.06773
}

Semantic roles & 50–950 ramp

primary

#42447D

secondary

#A6A475

accent

#C461C7

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#09080F

muted

#7B7B7F

Preview Lab

Preview with #42447D

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

Preview Lab → · Contrast checker → · Palette generator →