#3145B4#3145B4

#3145B4 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.7% C 0.176 H 269.8°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#3145B4
RGB	rgb(49, 69, 180)
HSL	hsl(231, 57%, 45%)
HSV	hsv(231, 73%, 71%)
CMYK	cmyk(72.8%, 61.7%, 0%, 29.4%)
CIE-LAB	lab(34.40, 30.98, -61.12)
CIE-LCH	lch(34.40, 68.52, 296.88°)
OKLab	oklab(44.66% -0.0006 -0.1765)
OKLCH	oklch(44.66% 0.177 269.8)
XYZ	xyz(11.6301, 8.2033, 44.1416)
Luminance	0.0820 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3145B4 #B4A031

analogous

#3186B4 #3145B4 #5F31B4

triadic

#3145B4 #B43145 #45B431

tetradic

#3145B4 #B43186 #B4A031 #31B45F

square

#3145B4 #B43186 #B4A031 #31B45F

split-complementary

#3145B4 #B45F31 #86B431

monochromatic

#172054 #243384 #3145B4 #5265D0 #8290DD

Accessibility & contrast

On white

7.95

#3145B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#3145B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3145B4

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3145B4	#FFFFFF	#000000	##FFFFFF
##3145B4	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B8

Deuteranopia (green-blind)

#004BB2

Tritanopia (blue-blind)

#006176

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3145b4;
/* rgb */ color: rgb(49, 69, 180);
/* oklch */ color: oklch(44.7% 0.176 269.8);

Tailwind

colors: {
  custom: {
    50: '#7c78cb',
    500: '#3145b4',
    950: '#000000',
  },
}

SCSS

$custom: #3145b4;
$custom-light: #7c78cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3145b4",
  "rgb": {
    "r": 49,
    "g": 69,
    "b": 180
  },
  "hsl": {
    "h": 230.84,
    "s": 57.205,
    "l": 44.902
  },
  "oklch": {
    "l": 0.44661,
    "c": 0.1765,
    "h": 269.8
  },
  "luminance": 0.08204
}

Semantic roles & 50–950 ramp

primary

#3145B4

secondary

#C6BB7B

accent

#C947E0

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3145B4

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

Preview Lab → · Contrast checker → · Palette generator →