#3140AB#3140AB

#3140AB is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.9% C 0.171 H 271.1°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#3140AB
RGB	rgb(49, 64, 171)
HSL	hsl(233, 55%, 43%)
HSV	hsv(233, 71%, 67%)
CMYK	cmyk(71.3%, 62.6%, 0%, 32.9%)
CIE-LAB	lab(32.39, 30.94, -59.05)
CIE-LCH	lch(32.39, 66.67, 297.65°)
OKLab	oklab(42.94% 0.0033 -0.1705)
OKLCH	oklch(42.94% 0.171 271.1)
XYZ	xyz(10.4482, 7.2590, 39.3707)
Luminance	0.0726 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.55

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3140AB #AB9C31

analogous

#317DAB #3140AB #5F31AB

triadic

#3140AB #AB3140 #40AB31

tetradic

#3140AB #AB317D #AB9C31 #31AB5F

square

#3140AB #AB317D #AB9C31 #31AB5F

split-complementary

#3140AB #AB5F31 #7DAB31

monochromatic

#161C4C #232E7B #3140AB #4D5DCC #7D88DA

Accessibility & contrast

On white

8.56

#3140AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#3140AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3140AB

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3140AB	#FFFFFF	#000000	##FFFFFF
##3140AB	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052AE

Deuteranopia (green-blind)

#0047A9

Tritanopia (blue-blind)

#005B6F

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3140ab;
/* rgb */ color: rgb(49, 64, 171);
/* oklch */ color: oklch(42.9% 0.171 271.1);

Tailwind

colors: {
  custom: {
    50: '#7a74c5',
    500: '#3140ab',
    950: '#000000',
  },
}

SCSS

$custom: #3140ab;
$custom-light: #7a74c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3140ab",
  "rgb": {
    "r": 49,
    "g": 64,
    "b": 171
  },
  "hsl": {
    "h": 232.623,
    "s": 55.455,
    "l": 43.137
  },
  "oklch": {
    "l": 0.42939,
    "c": 0.17052,
    "h": 271.1
  },
  "luminance": 0.0726
}

Semantic roles & 50–950 ramp

primary

#3140AB

secondary

#C2B975

accent

#CC49DF

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #3140AB

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

Preview Lab → · Contrast checker → · Palette generator →