#3145B2#3145B2

#3145B2 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.5% C 0.174 H 269.8°. Best body text is #FFFFFF at 8.00:1 contrast (WCAG AA passes).

Color values

HEX	#3145B2
RGB	rgb(49, 69, 178)
HSL	hsl(231, 57%, 45%)
HSV	hsv(231, 72%, 70%)
CMYK	cmyk(72.5%, 61.2%, 0%, 30.2%)
CIE-LAB	lab(34.24, 30.24, -60.21)
CIE-LCH	lch(34.24, 67.38, 296.67°)
OKLab	oklab(44.49% -0.0006 -0.1738)
OKLCH	oklch(44.49% 0.174 269.8)
XYZ	xyz(11.4279, 8.1224, 43.0764)
Luminance	0.0812 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3145B2 #B29E31

analogous

#3185B2 #3145B2 #5E31B2

triadic

#3145B2 #B23145 #45B231

tetradic

#3145B2 #B23185 #B29E31 #31B25E

square

#3145B2 #B23185 #B29E31 #31B25E

split-complementary

#3145B2 #B25E31 #85B231

monochromatic

#172052 #243282 #3145B2 #5165CF #818FDC

Accessibility & contrast

On white

8.00

#3145B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#3145B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3145B2

8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3145B2	#FFFFFF	#000000	##FFFFFF
##3145B2	1.00	8.00	2.62	8.00
#FFFFFF	8.00	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B6

Deuteranopia (green-blind)

#004BB0

Tritanopia (blue-blind)

#006175

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3145b2;
/* rgb */ color: rgb(49, 69, 178);
/* oklch */ color: oklch(44.5% 0.174 269.8);

Tailwind

colors: {
  custom: {
    50: '#7b78ca',
    500: '#3145b2',
    950: '#000000',
  },
}

SCSS

$custom: #3145b2;
$custom-light: #7b78ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3145b2",
  "rgb": {
    "r": 49,
    "g": 69,
    "b": 178
  },
  "hsl": {
    "h": 230.698,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.44486,
    "c": 0.17382,
    "h": 269.8
  },
  "luminance": 0.08124
}

Semantic roles & 50–950 ramp

primary

#3145B2

secondary

#C5BA79

accent

#C848E0

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3145B2

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

Preview Lab → · Contrast checker → · Palette generator →