#2828A4#2828A4

#2828A4 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.8% C 0.191 H 272.5°. Best body text is #FFFFFF at 10.88:1 contrast (WCAG AA passes).

Color values

HEX	#2828A4
RGB	rgb(40, 40, 164)
HSL	hsl(240, 61%, 40%)
HSV	hsv(240, 76%, 64%)
CMYK	cmyk(75.6%, 75.6%, 0%, 35.7%)
CIE-LAB	lab(25.71, 42.34, -65.84)
CIE-LCH	lch(25.71, 78.28, 302.75°)
OKLab	oklab(37.76% 0.0083 -0.1905)
OKLCH	oklch(37.76% 0.191 272.5)
XYZ	xyz(8.3325, 4.6482, 35.5728)
Luminance	0.0465 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2828A4 #A4A428

analogous

#2866A4 #2828A4 #6628A4

triadic

#2828A4 #A42828 #28A428

tetradic

#2828A4 #A42866 #A4A428 #28A466

square

#2828A4 #A42866 #A4A428 #28A466

split-complementary

#2828A4 #A46628 #66A428

monochromatic

#101042 #1C1C73 #2828A4 #3A3ACF #6B6BDB

Accessibility & contrast

On white

10.88

#2828A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#2828A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2828A4

10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2828A4	#FFFFFF	#000000	##FFFFFF
##2828A4	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)

#0043A8

Deuteranopia (green-blind)

#0037A2

Tritanopia (blue-blind)

#004C64

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2828a4;
/* rgb */ color: rgb(40, 40, 164);
/* oklch */ color: oklch(37.8% 0.191 272.5);

Tailwind

colors: {
  custom: {
    50: '#7764c0',
    500: '#2828a4',
    950: '#000000',
  },
}

SCSS

$custom: #2828a4;
$custom-light: #7764c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2828a4",
  "rgb": {
    "r": 40,
    "g": 40,
    "b": 164
  },
  "hsl": {
    "h": 240,
    "s": 60.784,
    "l": 40
  },
  "oklch": {
    "l": 0.37759,
    "c": 0.19072,
    "h": 272.5
  },
  "luminance": 0.04649
}

Semantic roles & 50–950 ramp

primary

#2828A4

secondary

#C1C166

accent

#E444E4

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #2828A4

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

Preview Lab → · Contrast checker → · Palette generator →