#3149B3#3149B3

#3149B3 is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.3% C 0.170 H 268.8°. Best body text is #FFFFFF at 7.68:1 contrast (WCAG AA passes).

Color values

HEX	#3149B3
RGB	rgb(49, 73, 179)
HSL	hsl(229, 57%, 45%)
HSV	hsv(229, 73%, 70%)
CMYK	cmyk(72.6%, 59.2%, 0%, 29.8%)
CIE-LAB	lab(35.34, 28.00, -58.99)
CIE-LCH	lch(35.34, 65.30, 295.39°)
OKLab	oklab(45.33% -0.0035 -0.1702)
OKLCH	oklch(45.33% 0.17 268.8)
XYZ	xyz(11.7830, 8.6715, 43.6919)
Luminance	0.0867 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3149B3 #B39B31

analogous

#318AB3 #3149B3 #5A31B3

triadic

#3149B3 #B33149 #49B331

tetradic

#3149B3 #B3318A #B39B31 #31B35A

square

#3149B3 #B3318A #B39B31 #31B35A

split-complementary

#3149B3 #B35A31 #8AB331

monochromatic

#172253 #243583 #3149B3 #5269D0 #8293DD

Accessibility & contrast

On white

7.68

#3149B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#3149B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3149B3

7.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3149B3	#FFFFFF	#000000	##FFFFFF
##3149B3	1.00	7.68	2.73	7.68
#FFFFFF	7.68	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059B7

Deuteranopia (green-blind)

#004DB1

Tritanopia (blue-blind)

#006477

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3149b3;
/* rgb */ color: rgb(49, 73, 179);
/* oklch */ color: oklch(45.3% 0.170 268.8);

Tailwind

colors: {
  custom: {
    50: '#7b7bcb',
    500: '#3149b3',
    950: '#000000',
  },
}

SCSS

$custom: #3149b3;
$custom-light: #7b7bcb;
$custom-dark: #000000;

JSON

{
  "hex": "#3149b3",
  "rgb": {
    "r": 49,
    "g": 73,
    "b": 179
  },
  "hsl": {
    "h": 228.923,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.45334,
    "c": 0.17025,
    "h": 268.8
  },
  "luminance": 0.08673
}

Semantic roles & 50–950 ramp

primary

#3149B3

secondary

#C6B87A

accent

#C448E0

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3149B3

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

Preview Lab → · Contrast checker → · Palette generator →