#3143B2#3143B2

#3143B2 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.1% C 0.176 H 270.3°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#3143B2
RGB	rgb(49, 67, 178)
HSL	hsl(232, 57%, 45%)
HSV	hsv(232, 72%, 70%)
CMYK	cmyk(72.5%, 62.4%, 0%, 30.2%)
CIE-LAB	lab(33.73, 31.54, -61.03)
CIE-LCH	lch(33.73, 68.70, 297.33°)
OKLab	oklab(44.11% 0.0009 -0.1762)
OKLCH	oklch(44.11% 0.176 270.3)
XYZ	xyz(11.3069, 7.8805, 43.0360)
Luminance	0.0788 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3143B2 #B2A031

analogous

#3184B2 #3143B2 #6031B2

triadic

#3143B2 #B23143 #43B231

tetradic

#3143B2 #B23184 #B2A031 #31B260

square

#3143B2 #B23184 #B2A031 #31B260

split-complementary

#3143B2 #B26031 #84B231

monochromatic

#171F52 #243182 #3143B2 #5163CF #818EDC

Accessibility & contrast

On white

8.15

#3143B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#3143B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3143B2

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3143B2	#FFFFFF	#000000	##FFFFFF
##3143B2	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B6

Deuteranopia (green-blind)

#0049B0

Tritanopia (blue-blind)

#005F74

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3143b2;
/* rgb */ color: rgb(49, 67, 178);
/* oklch */ color: oklch(44.1% 0.176 270.3);

Tailwind

colors: {
  custom: {
    50: '#7b77ca',
    500: '#3143b2',
    950: '#000000',
  },
}

SCSS

$custom: #3143b2;
$custom-light: #7b77ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3143b2",
  "rgb": {
    "r": 49,
    "g": 67,
    "b": 178
  },
  "hsl": {
    "h": 231.628,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.44114,
    "c": 0.17625,
    "h": 270.3
  },
  "luminance": 0.07882
}

Semantic roles & 50–950 ramp

primary

#3143B2

secondary

#C5BB79

accent

#CB48E0

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3143B2

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

Preview Lab → · Contrast checker → · Palette generator →