#2A28A1#2A28A1

#2A28A1 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.6% C 0.186 H 273.5°. Best body text is #FFFFFF at 10.96:1 contrast (WCAG AA passes).

Color values

HEX	#2A28A1
RGB	rgb(42, 40, 161)
HSL	hsl(241, 60%, 39%)
HSV	hsv(241, 75%, 63%)
CMYK	cmyk(73.9%, 75.2%, 0%, 36.9%)
CIE-LAB	lab(25.51, 41.51, -64.34)
CIE-LCH	lch(25.51, 76.57, 302.83°)
OKLab	oklab(37.56% 0.0113 -0.1861)
OKLCH	oklch(37.56% 0.186 273.5)
XYZ	xyz(8.1445, 4.5822, 34.1665)
Luminance	0.0458 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A28A1 #9FA128

analogous

#2863A1 #2A28A1 #6728A1

triadic

#2A28A1 #A12A28 #28A12A

tetradic

#2A28A1 #A12863 #9FA128 #28A167

square

#2A28A1 #A12863 #9FA128 #28A167

split-complementary

#2A28A1 #A16728 #63A128

monochromatic

#10103F #1D1C70 #2A28A1 #3B39CE #6B6ADA

Accessibility & contrast

On white

10.96

#2A28A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#2A28A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A28A1

10.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A28A1	#FFFFFF	#000000	##FFFFFF
##2A28A1	1.00	10.96	1.92	10.96
#FFFFFF	10.96	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042A5

Deuteranopia (green-blind)

#00379F

Tritanopia (blue-blind)

#004B62

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #2a28a1;
/* rgb */ color: rgb(42, 40, 161);
/* oklch */ color: oklch(37.6% 0.186 273.5);

Tailwind

colors: {
  custom: {
    50: '#7764be',
    500: '#2a28a1',
    950: '#000000',
  },
}

SCSS

$custom: #2a28a1;
$custom-light: #7764be;
$custom-dark: #000000;

JSON

{
  "hex": "#2a28a1",
  "rgb": {
    "r": 42,
    "g": 40,
    "b": 161
  },
  "hsl": {
    "h": 240.992,
    "s": 60.199,
    "l": 39.412
  },
  "oklch": {
    "l": 0.37556,
    "c": 0.18648,
    "h": 273.5
  },
  "luminance": 0.04583
}

Semantic roles & 50–950 ramp

primary

#2A28A1

secondary

#BFC065

accent

#E344E1

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #2A28A1

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

Preview Lab → · Contrast checker → · Palette generator →