#3148AA#3148AA

#3148AA is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.4% C 0.159 H 268.9°. Best body text is #FFFFFF at 7.96:1 contrast (WCAG AA passes).

Color values

HEX	#3148AA
RGB	rgb(49, 72, 170)
HSL	hsl(229, 55%, 43%)
HSV	hsv(229, 71%, 67%)
CMYK	cmyk(71.2%, 57.6%, 0%, 33.3%)
CIE-LAB	lab(34.37, 25.33, -55.22)
CIE-LCH	lch(34.37, 60.76, 294.64°)
OKLab	oklab(44.39% -0.0029 -0.1591)
OKLCH	oklch(44.39% 0.159 268.9)
XYZ	xyz(10.8372, 8.1889, 39.0319)
Luminance	0.0819 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3148AA #AA9331

analogous

#3184AA #3148AA #5631AA

triadic

#3148AA #AA3148 #48AA31

tetradic

#3148AA #AA3184 #AA9331 #31AA56

square

#3148AA #AA3184 #AA9331 #31AA56

split-complementary

#3148AA #AA5631 #84AA31

monochromatic

#16204B #23347A #3148AA #4D65CC #7C8ED9

Accessibility & contrast

On white

7.96

#3148AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#3148AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3148AA

7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3148AA	#FFFFFF	#000000	##FFFFFF
##3148AA	1.00	7.96	2.64	7.96
#FFFFFF	7.96	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057AD

Deuteranopia (green-blind)

#004BA8

Tritanopia (blue-blind)

#006072

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3148aa;
/* rgb */ color: rgb(49, 72, 170);
/* oklch */ color: oklch(44.4% 0.159 268.9);

Tailwind

colors: {
  custom: {
    50: '#797ac4',
    500: '#3148aa',
    950: '#000000',
  },
}

SCSS

$custom: #3148aa;
$custom-light: #797ac4;
$custom-dark: #000000;

JSON

{
  "hex": "#3148aa",
  "rgb": {
    "r": 49,
    "g": 72,
    "b": 170
  },
  "hsl": {
    "h": 228.595,
    "s": 55.251,
    "l": 42.941
  },
  "oklch": {
    "l": 0.44387,
    "c": 0.15917,
    "h": 268.9
  },
  "luminance": 0.0819
}

Semantic roles & 50–950 ramp

primary

#3148AA

secondary

#C2B375

accent

#C249DF

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #3148AA

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

Preview Lab → · Contrast checker → · Palette generator →