#3145B0#3145B0

#3145B0 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.3% C 0.171 H 269.8°. Best body text is #FFFFFF at 8.05:1 contrast (WCAG AA passes).

Color values

HEX	#3145B0
RGB	rgb(49, 69, 176)
HSL	hsl(231, 56%, 44%)
HSV	hsv(231, 72%, 69%)
CMYK	cmyk(72.2%, 60.8%, 0%, 31%)
CIE-LAB	lab(34.07, 29.51, -59.29)
CIE-LCH	lch(34.07, 66.23, 296.46°)
OKLab	oklab(44.31% -0.0005 -0.1711)
OKLCH	oklch(44.31% 0.171 269.8)
XYZ	xyz(11.2285, 8.0427, 42.0265)
Luminance	0.0804 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3145B0 #B09C31

analogous

#3185B0 #3145B0 #5D31B0

triadic

#3145B0 #B03145 #45B031

tetradic

#3145B0 #B03185 #B09C31 #31B05D

square

#3145B0 #B03185 #B09C31 #31B05D

split-complementary

#3145B0 #B05D31 #85B031

monochromatic

#161F50 #243280 #3145B0 #5064CE #808EDC

Accessibility & contrast

On white

8.05

#3145B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#3145B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3145B0

8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3145B0	#FFFFFF	#000000	##FFFFFF
##3145B0	1.00	8.05	2.61	8.05
#FFFFFF	8.05	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B4

Deuteranopia (green-blind)

#004AAE

Tritanopia (blue-blind)

#006074

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3145b0;
/* rgb */ color: rgb(49, 69, 176);
/* oklch */ color: oklch(44.3% 0.171 269.8);

Tailwind

colors: {
  custom: {
    50: '#7b78c8',
    500: '#3145b0',
    950: '#000000',
  },
}

SCSS

$custom: #3145b0;
$custom-light: #7b78c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3145b0",
  "rgb": {
    "r": 49,
    "g": 69,
    "b": 176
  },
  "hsl": {
    "h": 230.551,
    "s": 56.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.44313,
    "c": 0.17112,
    "h": 269.8
  },
  "luminance": 0.08044
}

Semantic roles & 50–950 ramp

primary

#3145B0

secondary

#C5B978

accent

#C848E0

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3145B0

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

Preview Lab → · Contrast checker → · Palette generator →