#3128AB#3128AB

#3128AB is a dark, vivid blue. Relative luminance 0.051; OKLCH L 39.1% C 0.197 H 275.3°. Best body text is #FFFFFF at 10.38:1 contrast (WCAG AA passes).

Color values

HEX	#3128AB
RGB	rgb(49, 40, 171)
HSL	hsl(244, 62%, 41%)
HSV	hsv(244, 77%, 67%)
CMYK	cmyk(71.3%, 76.6%, 0%, 32.9%)
CIE-LAB	lab(27.05, 45.47, -67.83)
CIE-LCH	lch(27.05, 81.66, 303.83°)
OKLab	oklab(39.08% 0.0181 -0.1961)
OKLCH	oklch(39.08% 0.197 275.3)
XYZ	xyz(9.3737, 5.1099, 39.0125)
Luminance	0.0511 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3128AB #A2AB28

analogous

#2861AB #3128AB #7328AB

triadic

#3128AB #AB3128 #28AB31

tetradic

#3128AB #AB2861 #A2AB28 #28AB73

square

#3128AB #AB2861 #A2AB28 #28AB73

split-complementary

#3128AB #AB7328 #61AB28

monochromatic

#151148 #231C79 #3128AB #483ED2 #7770DE

Accessibility & contrast

On white

10.38

#3128AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#3128AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3128AB

10.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3128AB	#FFFFFF	#000000	##FFFFFF
##3128AB	1.00	10.38	2.02	10.38
#FFFFFF	10.38	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046AF

Deuteranopia (green-blind)

#003AA9

Tritanopia (blue-blind)

#004F68

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #3128ab;
/* rgb */ color: rgb(49, 40, 171);
/* oklch */ color: oklch(39.1% 0.197 275.3);

Tailwind

colors: {
  custom: {
    50: '#7c64c5',
    500: '#3128ab',
    950: '#000000',
  },
}

SCSS

$custom: #3128ab;
$custom-light: #7c64c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3128ab",
  "rgb": {
    "r": 49,
    "g": 40,
    "b": 171
  },
  "hsl": {
    "h": 244.122,
    "s": 62.085,
    "l": 41.373
  },
  "oklch": {
    "l": 0.39082,
    "c": 0.19698,
    "h": 275.3
  },
  "luminance": 0.05111
}

Semantic roles & 50–950 ramp

primary

#3128AB

secondary

#BEC46A

accent

#E543DA

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3128AB

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

Preview Lab → · Contrast checker → · Palette generator →