#2B28A4#2B28A4

#2B28A4 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.9% C 0.190 H 273.6°. Best body text is #FFFFFF at 10.81:1 contrast (WCAG AA passes).

Color values

HEX	#2B28A4
RGB	rgb(43, 40, 164)
HSL	hsl(241, 61%, 40%)
HSV	hsv(241, 76%, 64%)
CMYK	cmyk(73.8%, 75.6%, 0%, 35.7%)
CIE-LAB	lab(25.89, 42.61, -65.52)
CIE-LCH	lch(25.89, 78.16, 303.04°)
OKLab	oklab(37.94% 0.012 -0.1896)
OKLCH	oklch(37.94% 0.19 273.6)
XYZ	xyz(8.4537, 4.7107, 35.5785)
Luminance	0.0471 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B28A4 #A1A428

analogous

#2863A4 #2B28A4 #6928A4

triadic

#2B28A4 #A42B28 #28A42B

tetradic

#2B28A4 #A42863 #A1A428 #28A469

square

#2B28A4 #A42863 #A1A428 #28A469

split-complementary

#2B28A4 #A46928 #63A428

monochromatic

#111042 #1E1C73 #2B28A4 #3E3ACF #6E6BDB

Accessibility & contrast

On white

10.81

#2B28A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#2B28A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B28A4

10.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B28A4	#FFFFFF	#000000	##FFFFFF
##2B28A4	1.00	10.81	1.94	10.81
#FFFFFF	10.81	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.81	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: #2b28a4;
/* rgb */ color: rgb(43, 40, 164);
/* oklch */ color: oklch(37.9% 0.190 273.6);

Tailwind

colors: {
  custom: {
    50: '#7864c0',
    500: '#2b28a4',
    950: '#000000',
  },
}

SCSS

$custom: #2b28a4;
$custom-light: #7864c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2b28a4",
  "rgb": {
    "r": 43,
    "g": 40,
    "b": 164
  },
  "hsl": {
    "h": 241.452,
    "s": 60.784,
    "l": 40
  },
  "oklch": {
    "l": 0.37941,
    "c": 0.18994,
    "h": 273.6
  },
  "luminance": 0.04712
}

Semantic roles & 50–950 ramp

primary

#2B28A4

secondary

#BFC166

accent

#E444E0

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #2B28A4

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

Preview Lab → · Contrast checker → · Palette generator →