#2A28A4#2A28A4

#2A28A4 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.9% C 0.190 H 273.2°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#2A28A4
RGB	rgb(42, 40, 164)
HSL	hsl(241, 61%, 40%)
HSV	hsv(241, 76%, 64%)
CMYK	cmyk(74.4%, 75.6%, 0%, 35.7%)
CIE-LAB	lab(25.83, 42.52, -65.63)
CIE-LCH	lch(25.83, 78.20, 302.94°)
OKLab	oklab(37.88% 0.0107 -0.1899)
OKLCH	oklch(37.88% 0.19 273.2)
XYZ	xyz(8.4122, 4.6893, 35.5765)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A28A4 #A2A428

analogous

#2864A4 #2A28A4 #6828A4

triadic

#2A28A4 #A42A28 #28A42A

tetradic

#2A28A4 #A42864 #A2A428 #28A468

square

#2A28A4 #A42864 #A2A428 #28A468

split-complementary

#2A28A4 #A46828 #64A428

monochromatic

#111042 #1D1C73 #2A28A4 #3D3ACF #6D6BDB

Accessibility & contrast

On white

10.84

#2A28A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#2A28A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A28A4

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A28A4	#FFFFFF	#000000	##FFFFFF
##2A28A4	1.00	10.84	1.94	10.84
#FFFFFF	10.84	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043A8

Deuteranopia (green-blind)

#0037A2

Tritanopia (blue-blind)

#004C64

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2a28a4;
/* rgb */ color: rgb(42, 40, 164);
/* oklch */ color: oklch(37.9% 0.190 273.2);

Tailwind

colors: {
  custom: {
    50: '#7864c0',
    500: '#2a28a4',
    950: '#000000',
  },
}

SCSS

$custom: #2a28a4;
$custom-light: #7864c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2a28a4",
  "rgb": {
    "r": 42,
    "g": 40,
    "b": 164
  },
  "hsl": {
    "h": 240.968,
    "s": 60.784,
    "l": 40
  },
  "oklch": {
    "l": 0.37879,
    "c": 0.1902,
    "h": 273.2
  },
  "luminance": 0.0469
}

Semantic roles & 50–950 ramp

primary

#2A28A4

secondary

#C0C166

accent

#E444E1

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #2A28A4

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

Preview Lab → · Contrast checker → · Palette generator →