#3148AB#3148AB

#3148AB is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.5% C 0.161 H 269.0°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#3148AB
RGB	rgb(49, 72, 171)
HSL	hsl(229, 55%, 43%)
HSV	hsv(229, 71%, 67%)
CMYK	cmyk(71.3%, 57.9%, 0%, 32.9%)
CIE-LAB	lab(34.45, 25.70, -55.69)
CIE-LCH	lch(34.45, 61.34, 294.77°)
OKLab	oklab(44.47% -0.0029 -0.1605)
OKLCH	oklch(44.47% 0.161 269)
XYZ	xyz(10.9321, 8.2269, 39.5320)
Luminance	0.0823 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3148AB #AB9431

analogous

#3185AB #3148AB #5731AB

triadic

#3148AB #AB3148 #48AB31

tetradic

#3148AB #AB3185 #AB9431 #31AB57

square

#3148AB #AB3185 #AB9431 #31AB57

split-complementary

#3148AB #AB5731 #85AB31

monochromatic

#16204C #23347B #3148AB #4D65CC #7D8EDA

Accessibility & contrast

On white

7.94

#3148AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#3148AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3148AB

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3148AB	#FFFFFF	#000000	##FFFFFF
##3148AB	1.00	7.94	2.65	7.94
#FFFFFF	7.94	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057AE

Deuteranopia (green-blind)

#004CA9

Tritanopia (blue-blind)

#006072

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3148ab;
/* rgb */ color: rgb(49, 72, 171);
/* oklch */ color: oklch(44.5% 0.161 269.0);

Tailwind

colors: {
  custom: {
    50: '#797ac5',
    500: '#3148ab',
    950: '#000000',
  },
}

SCSS

$custom: #3148ab;
$custom-light: #797ac5;
$custom-dark: #000000;

JSON

{
  "hex": "#3148ab",
  "rgb": {
    "r": 49,
    "g": 72,
    "b": 171
  },
  "hsl": {
    "h": 228.689,
    "s": 55.455,
    "l": 43.137
  },
  "oklch": {
    "l": 0.4447,
    "c": 0.16056,
    "h": 269
  },
  "luminance": 0.08228
}

Semantic roles & 50–950 ramp

primary

#3148AB

secondary

#C2B475

accent

#C349DF

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #3148AB

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

Preview Lab → · Contrast checker → · Palette generator →