#3148B4#3148B4

#3148B4 is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.2% C 0.173 H 269.1°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#3148B4
RGB	rgb(49, 72, 180)
HSL	hsl(229, 57%, 45%)
HSV	hsv(229, 73%, 71%)
CMYK	cmyk(72.8%, 60%, 0%, 29.4%)
CIE-LAB	lab(35.17, 29.02, -59.87)
CIE-LCH	lch(35.17, 66.54, 295.86°)
OKLab	oklab(45.23% -0.0028 -0.1728)
OKLCH	oklch(45.23% 0.173 269.1)
XYZ	xyz(11.8194, 8.5818, 44.2047)
Luminance	0.0858 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3148B4 #B49D31

analogous

#3189B4 #3148B4 #5C31B4

triadic

#3148B4 #B43148 #48B431

tetradic

#3148B4 #B43189 #B49D31 #31B45C

square

#3148B4 #B43189 #B49D31 #31B45C

split-complementary

#3148B4 #B45C31 #89B431

monochromatic

#172254 #243584 #3148B4 #5268D0 #8292DD

Accessibility & contrast

On white

7.73

#3148B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#3148B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3148B4

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3148B4	#FFFFFF	#000000	##FFFFFF
##3148B4	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059B8

Deuteranopia (green-blind)

#004DB2

Tritanopia (blue-blind)

#006377

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3148b4;
/* rgb */ color: rgb(49, 72, 180);
/* oklch */ color: oklch(45.2% 0.173 269.1);

Tailwind

colors: {
  custom: {
    50: '#7b7acb',
    500: '#3148b4',
    950: '#000000',
  },
}

SCSS

$custom: #3148b4;
$custom-light: #7b7acb;
$custom-dark: #000000;

JSON

{
  "hex": "#3148b4",
  "rgb": {
    "r": 49,
    "g": 72,
    "b": 180
  },
  "hsl": {
    "h": 229.466,
    "s": 57.205,
    "l": 44.902
  },
  "oklch": {
    "l": 0.45227,
    "c": 0.17283,
    "h": 269.1
  },
  "luminance": 0.08583
}

Semantic roles & 50–950 ramp

primary

#3148B4

secondary

#C6B97B

accent

#C647E0

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3148B4

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

Preview Lab → · Contrast checker → · Palette generator →