#3143B7#3143B7

#3143B7 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.6% C 0.183 H 270.2°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#3143B7
RGB	rgb(49, 67, 183)
HSL	hsl(232, 58%, 45%)
HSV	hsv(232, 73%, 72%)
CMYK	cmyk(73.2%, 63.4%, 0%, 28.2%)
CIE-LAB	lab(34.16, 33.36, -63.29)
CIE-LCH	lch(34.16, 71.55, 297.79°)
OKLab	oklab(44.56% 0.0007 -0.1829)
OKLCH	oklch(44.56% 0.183 270.2)
XYZ	xyz(11.8181, 8.0849, 45.7283)
Luminance	0.0809 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.78

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3143B7 #B7A531

analogous

#3186B7 #3143B7 #6231B7

triadic

#3143B7 #B73143 #43B731

tetradic

#3143B7 #B73186 #B7A531 #31B762

square

#3143B7 #B73186 #B7A531 #31B762

split-complementary

#3143B7 #B76231 #86B731

monochromatic

#172056 #243187 #3143B7 #5465D1 #8490DE

Accessibility & contrast

On white

8.02

#3143B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#3143B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3143B7

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3143B7	#FFFFFF	#000000	##FFFFFF
##3143B7	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BB

Deuteranopia (green-blind)

#004AB5

Tritanopia (blue-blind)

#006177

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3143b7;
/* rgb */ color: rgb(49, 67, 183);
/* oklch */ color: oklch(44.6% 0.183 270.2);

Tailwind

colors: {
  custom: {
    50: '#7c77ce',
    500: '#3143b7',
    950: '#000000',
  },
}

SCSS

$custom: #3143b7;
$custom-light: #7c77ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3143b7",
  "rgb": {
    "r": 49,
    "g": 67,
    "b": 183
  },
  "hsl": {
    "h": 231.94,
    "s": 57.759,
    "l": 45.49
  },
  "oklch": {
    "l": 0.4456,
    "c": 0.18289,
    "h": 270.2
  },
  "luminance": 0.08086
}

Semantic roles & 50–950 ramp

primary

#3143B7

secondary

#C8BD7C

accent

#CC47E1

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #3143B7

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

Preview Lab → · Contrast checker → · Palette generator →