#3A478E#3A478E

#3A478E is a dark, moderate blue. Relative luminance 0.074; OKLCH L 42.6% C 0.118 H 272.6°. Best body text is #FFFFFF at 8.50:1 contrast (WCAG AA passes).

Color values

HEX	#3A478E
RGB	rgb(58, 71, 142)
HSL	hsl(231, 42%, 39%)
HSV	hsv(231, 59%, 56%)
CMYK	cmyk(59.2%, 50%, 0%, 44.3%)
CIE-LAB	lab(32.61, 17.35, -41.12)
CIE-LCH	lch(32.61, 44.63, 292.87°)
OKLab	oklab(42.56% 0.0054 -0.1175)
OKLCH	oklch(42.56% 0.118 272.6)
XYZ	xyz(8.8790, 7.3583, 26.5383)
Luminance	0.0736 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A478E #8E813A

analogous

#3A718E #3A478E #573A8E

triadic

#3A478E #8E3A47 #478E3A

tetradic

#3A478E #8E3A71 #8E813A #3A8E57

square

#3A478E #8E3A71 #8E813A #3A8E57

split-complementary

#3A478E #8E573A #718E3A

monochromatic

#171C37 #283163 #3A478E #4E5FB7 #7A86C9

Accessibility & contrast

On white

8.50

#3A478E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#3A478E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A478E

8.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A478E	#FFFFFF	#000000	##FFFFFF
##3A478E	1.00	8.50	2.47	8.50
#FFFFFF	8.50	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#245091

Deuteranopia (green-blind)

#16498C

Tritanopia (blue-blind)

#005763

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3a478e;
/* rgb */ color: rgb(58, 71, 142);
/* oklch */ color: oklch(42.6% 0.118 272.6);

Tailwind

colors: {
  custom: {
    50: '#787aaf',
    500: '#3a478e',
    950: '#000000',
  },
}

SCSS

$custom: #3a478e;
$custom-light: #787aaf;
$custom-dark: #000000;

JSON

{
  "hex": "#3a478e",
  "rgb": {
    "r": 58,
    "g": 71,
    "b": 142
  },
  "hsl": {
    "h": 230.714,
    "s": 42,
    "l": 39.216
  },
  "oklch": {
    "l": 0.42558,
    "c": 0.11759,
    "h": 272.6
  },
  "luminance": 0.07359
}

Semantic roles & 50–950 ramp

primary

#3A478E

secondary

#B2A872

accent

#BF56D2

background

#F7F7FA

surface

#EEEDF5

border

#C9C8CF

text

#090910

muted

#7B7B7F

Preview Lab

Preview with #3A478E

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

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