#3A47AB#3A47AB

#3A47AB is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.8% C 0.159 H 272.6°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#3A47AB
RGB	rgb(58, 71, 171)
HSL	hsl(233, 49%, 45%)
HSV	hsv(233, 66%, 67%)
CMYK	cmyk(66.1%, 58.5%, 0%, 32.9%)
CIE-LAB	lab(34.69, 27.69, -55.28)
CIE-LCH	lch(34.69, 61.83, 296.61°)
OKLab	oklab(44.78% 0.0072 -0.1591)
OKLCH	oklch(44.78% 0.159 272.6)
XYZ	xyz(11.3464, 8.3453, 39.5330)
Luminance	0.0835 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A47AB #AB9E3A

analogous

#3A80AB #3A47AB #653AAB

triadic

#3A47AB #AB3A47 #47AB3A

tetradic

#3A47AB #AB3A80 #AB9E3A #3AAB65

square

#3A47AB #AB3A80 #AB9E3A #3AAB65

split-complementary

#3A47AB #AB653A #80AB3A

monochromatic

#1B2150 #2A347D #3A47AB #5B67C7 #8992D7

Accessibility & contrast

On white

7.87

#3A47AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#3A47AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A47AB

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A47AB	#FFFFFF	#000000	##FFFFFF
##3A47AB	1.00	7.87	2.67	7.87
#FFFFFF	7.87	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057AE

Deuteranopia (green-blind)

#004DA9

Tritanopia (blue-blind)

#005F72

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3a47ab;
/* rgb */ color: rgb(58, 71, 171);
/* oklch */ color: oklch(44.8% 0.159 272.6);

Tailwind

colors: {
  custom: {
    50: '#7d7ac5',
    500: '#3a47ab',
    950: '#000000',
  },
}

SCSS

$custom: #3a47ab;
$custom-light: #7d7ac5;
$custom-dark: #000000;

JSON

{
  "hex": "#3a47ab",
  "rgb": {
    "r": 58,
    "g": 71,
    "b": 171
  },
  "hsl": {
    "h": 233.097,
    "s": 49.345,
    "l": 44.902
  },
  "oklch": {
    "l": 0.44784,
    "c": 0.15927,
    "h": 272.6
  },
  "luminance": 0.08346
}

Semantic roles & 50–950 ramp

primary

#3A47AB

secondary

#C1BA80

accent

#C94FD9

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3A47AB

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

Preview Lab → · Contrast checker → · Palette generator →