#3148AC#3148AC

#3148AC is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.6% C 0.162 H 269.0°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#3148AC
RGB	rgb(49, 72, 172)
HSL	hsl(229, 56%, 43%)
HSV	hsv(229, 72%, 67%)
CMYK	cmyk(71.5%, 58.1%, 0%, 32.5%)
CIE-LAB	lab(34.53, 26.07, -56.16)
CIE-LCH	lch(34.53, 61.92, 294.90°)
OKLab	oklab(44.55% -0.0029 -0.1619)
OKLCH	oklch(44.55% 0.162 269)
XYZ	xyz(11.0278, 8.2651, 40.0359)
Luminance	0.0827 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3148AC #AC9531

analogous

#3185AC #3148AC #5731AC

triadic

#3148AC #AC3148 #48AC31

tetradic

#3148AC #AC3185 #AC9531 #31AC57

square

#3148AC #AC3185 #AC9531 #31AC57

split-complementary

#3148AC #AC5731 #85AC31

monochromatic

#16204D #23347C #3148AC #4E65CC #7D8FDA

Accessibility & contrast

On white

7.91

#3148AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#3148AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3148AC

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3148AC	#FFFFFF	#000000	##FFFFFF
##3148AC	1.00	7.91	2.65	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057AF

Deuteranopia (green-blind)

#004CAA

Tritanopia (blue-blind)

#006173

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3148ac;
/* rgb */ color: rgb(49, 72, 172);
/* oklch */ color: oklch(44.6% 0.162 269.0);

Tailwind

colors: {
  custom: {
    50: '#7a7ac5',
    500: '#3148ac',
    950: '#000000',
  },
}

SCSS

$custom: #3148ac;
$custom-light: #7a7ac5;
$custom-dark: #000000;

JSON

{
  "hex": "#3148ac",
  "rgb": {
    "r": 49,
    "g": 72,
    "b": 172
  },
  "hsl": {
    "h": 228.78,
    "s": 55.656,
    "l": 43.333
  },
  "oklch": {
    "l": 0.44553,
    "c": 0.16193,
    "h": 269
  },
  "luminance": 0.08266
}

Semantic roles & 50–950 ramp

primary

#3148AC

secondary

#C3B476

accent

#C349DF

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #3148AC

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

Preview Lab → · Contrast checker → · Palette generator →