#3A478D#3A478D

#3A478D is a dark, moderate blue. Relative luminance 0.073; OKLCH L 42.5% C 0.116 H 272.6°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#3A478D
RGB	rgb(58, 71, 141)
HSL	hsl(231, 42%, 39%)
HSV	hsv(231, 59%, 55%)
CMYK	cmyk(58.9%, 49.6%, 0%, 44.7%)
CIE-LAB	lab(32.54, 17.00, -40.61)
CIE-LCH	lch(32.54, 44.03, 292.71°)
OKLab	oklab(42.49% 0.0053 -0.116)
OKLCH	oklch(42.49% 0.116 272.6)
XYZ	xyz(8.8043, 7.3284, 26.1447)
Luminance	0.0733 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A478D #8D803A

analogous

#3A718D #3A478D #573A8D

triadic

#3A478D #8D3A47 #478D3A

tetradic

#3A478D #8D3A71 #8D803A #3A8D57

square

#3A478D #8D3A71 #8D803A #3A8D57

split-complementary

#3A478D #8D573A #718D3A

monochromatic

#161B36 #283162 #3A478D #4E5EB6 #7986C8

Accessibility & contrast

On white

8.52

#3A478D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#3A478D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A478D

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A478D	#FFFFFF	#000000	##FFFFFF
##3A478D	1.00	8.52	2.47	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#255090

Deuteranopia (green-blind)

#18498C

Tritanopia (blue-blind)

#025763

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3a478d;
/* rgb */ color: rgb(58, 71, 141);
/* oklch */ color: oklch(42.5% 0.116 272.6);

Tailwind

colors: {
  custom: {
    50: '#787aaf',
    500: '#3a478d',
    950: '#000000',
  },
}

SCSS

$custom: #3a478d;
$custom-light: #787aaf;
$custom-dark: #000000;

JSON

{
  "hex": "#3a478d",
  "rgb": {
    "r": 58,
    "g": 71,
    "b": 141
  },
  "hsl": {
    "h": 230.602,
    "s": 41.709,
    "l": 39.02
  },
  "oklch": {
    "l": 0.42487,
    "c": 0.11609,
    "h": 272.6
  },
  "luminance": 0.07329
}

Semantic roles & 50–950 ramp

primary

#3A478D

secondary

#B1A771

accent

#BE56D2

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#090910

muted

#7B7B7F

Preview Lab

Preview with #3A478D

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

Preview Lab → · Contrast checker → · Palette generator →