#3145B3#3145B3

#3145B3 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.6% C 0.175 H 269.8°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#3145B3
RGB	rgb(49, 69, 179)
HSL	hsl(231, 57%, 45%)
HSV	hsv(231, 73%, 70%)
CMYK	cmyk(72.6%, 61.5%, 0%, 29.8%)
CIE-LAB	lab(34.32, 30.61, -60.66)
CIE-LCH	lch(34.32, 67.95, 296.77°)
OKLab	oklab(44.57% -0.0006 -0.1752)
OKLCH	oklch(44.57% 0.175 269.8)
XYZ	xyz(11.5286, 8.1627, 43.6071)
Luminance	0.0816 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3145B3 #B39F31

analogous

#3186B3 #3145B3 #5E31B3

triadic

#3145B3 #B33145 #45B331

tetradic

#3145B3 #B33186 #B39F31 #31B35E

square

#3145B3 #B33186 #B39F31 #31B35E

split-complementary

#3145B3 #B35E31 #86B331

monochromatic

#172053 #243283 #3145B3 #5265D0 #8290DD

Accessibility & contrast

On white

7.98

#3145B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#3145B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3145B3

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3145B3	#FFFFFF	#000000	##FFFFFF
##3145B3	1.00	7.98	2.63	7.98
#FFFFFF	7.98	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B7

Deuteranopia (green-blind)

#004BB1

Tritanopia (blue-blind)

#006175

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3145b3;
/* rgb */ color: rgb(49, 69, 179);
/* oklch */ color: oklch(44.6% 0.175 269.8);

Tailwind

colors: {
  custom: {
    50: '#7b78cb',
    500: '#3145b3',
    950: '#000000',
  },
}

SCSS

$custom: #3145b3;
$custom-light: #7b78cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3145b3",
  "rgb": {
    "r": 49,
    "g": 69,
    "b": 179
  },
  "hsl": {
    "h": 230.769,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.44573,
    "c": 0.17516,
    "h": 269.8
  },
  "luminance": 0.08164
}

Semantic roles & 50–950 ramp

primary

#3145B3

secondary

#C6BA7A

accent

#C948E0

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3145B3

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

Preview Lab → · Contrast checker → · Palette generator →