#3145B9#3145B9

#3145B9 is a mid, vivid blue. Relative luminance 0.084; OKLCH L 45.1% C 0.183 H 269.8°. Best body text is #FFFFFF at 7.83:1 contrast (WCAG AA passes).

Color values

HEX	#3145B9
RGB	rgb(49, 69, 185)
HSL	hsl(231, 58%, 46%)
HSV	hsv(231, 74%, 73%)
CMYK	cmyk(73.5%, 62.7%, 0%, 27.5%)
CIE-LAB	lab(34.82, 32.80, -63.39)
CIE-LCH	lch(34.82, 71.37, 297.36°)
OKLab	oklab(45.1% -0.0007 -0.1831)
OKLCH	oklch(45.1% 0.183 269.8)
XYZ	xyz(12.1487, 8.4107, 46.8727)
Luminance	0.0841 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3145B9 #B9A531

analogous

#3189B9 #3145B9 #6131B9

triadic

#3145B9 #B93145 #45B931

tetradic

#3145B9 #B93189 #B9A531 #31B961

square

#3145B9 #B93189 #B9A531 #31B961

split-complementary

#3145B9 #B96131 #89B931

monochromatic

#172158 #243389 #3145B9 #5568D2 #8693DF

Accessibility & contrast

On white

7.83

#3145B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#3145B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3145B9

7.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3145B9	#FFFFFF	#000000	##FFFFFF
##3145B9	1.00	7.83	2.68	7.83
#FFFFFF	7.83	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BD

Deuteranopia (green-blind)

#004CB7

Tritanopia (blue-blind)

#006378

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3145b9;
/* rgb */ color: rgb(49, 69, 185);
/* oklch */ color: oklch(45.1% 0.183 269.8);

Tailwind

colors: {
  custom: {
    50: '#7d78cf',
    500: '#3145b9',
    950: '#000000',
  },
}

SCSS

$custom: #3145b9;
$custom-light: #7d78cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3145b9",
  "rgb": {
    "r": 49,
    "g": 69,
    "b": 185
  },
  "hsl": {
    "h": 231.176,
    "s": 58.12,
    "l": 45.882
  },
  "oklch": {
    "l": 0.45103,
    "c": 0.18314,
    "h": 269.8
  },
  "luminance": 0.08412
}

Semantic roles & 50–950 ramp

primary

#3145B9

secondary

#C8BD7D

accent

#CB46E1

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3145B9

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

Preview Lab → · Contrast checker → · Palette generator →