#2A28A3#2A28A3

#2A28A3 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.8% C 0.189 H 273.3°. Best body text is #FFFFFF at 10.88:1 contrast (WCAG AA passes).

Color values

HEX	#2A28A3
RGB	rgb(42, 40, 163)
HSL	hsl(241, 61%, 40%)
HSV	hsv(241, 75%, 64%)
CMYK	cmyk(74.2%, 75.5%, 0%, 36.1%)
CIE-LAB	lab(25.72, 42.18, -65.20)
CIE-LCH	lch(25.72, 77.66, 302.90°)
OKLab	oklab(37.77% 0.0109 -0.1887)
OKLCH	oklch(37.77% 0.189 273.3)
XYZ	xyz(8.3223, 4.6533, 35.1028)
Luminance	0.0465 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A28A3 #A1A328

analogous

#2863A3 #2A28A3 #6828A3

triadic

#2A28A3 #A32A28 #28A32A

tetradic

#2A28A3 #A32863 #A1A328 #28A368

square

#2A28A3 #A32863 #A1A328 #28A368

split-complementary

#2A28A3 #A36828 #63A328

monochromatic

#111041 #1D1C72 #2A28A3 #3C3ACF #6D6BDB

Accessibility & contrast

On white

10.88

#2A28A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#2A28A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A28A3

10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A28A3	#FFFFFF	#000000	##FFFFFF
##2A28A3	1.00	10.88	1.93	10.88
#FFFFFF	10.88	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043A7

Deuteranopia (green-blind)

#0037A1

Tritanopia (blue-blind)

#004C63

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2a28a3;
/* rgb */ color: rgb(42, 40, 163);
/* oklch */ color: oklch(37.8% 0.189 273.3);

Tailwind

colors: {
  custom: {
    50: '#7864bf',
    500: '#2a28a3',
    950: '#000000',
  },
}

SCSS

$custom: #2a28a3;
$custom-light: #7864bf;
$custom-dark: #000000;

JSON

{
  "hex": "#2a28a3",
  "rgb": {
    "r": 42,
    "g": 40,
    "b": 163
  },
  "hsl": {
    "h": 240.976,
    "s": 60.591,
    "l": 39.804
  },
  "oklch": {
    "l": 0.37771,
    "c": 0.18897,
    "h": 273.3
  },
  "luminance": 0.04654
}

Semantic roles & 50–950 ramp

primary

#2A28A3

secondary

#C0C166

accent

#E444E1

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #2A28A3

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

Preview Lab → · Contrast checker → · Palette generator →