#2A28B8#2A28B8

#2A28B8 is a dark, highly saturated blue. Relative luminance 0.055; OKLCH L 40.1% C 0.214 H 271.8°. Best body text is #FFFFFF at 10.03:1 contrast (WCAG AA passes).

Color values

HEX	#2A28B8
RGB	rgb(42, 40, 184)
HSL	hsl(241, 64%, 44%)
HSV	hsv(241, 78%, 72%)
CMYK	cmyk(77.2%, 78.3%, 0%, 27.8%)
CIE-LAB	lab(28.03, 49.07, -73.99)
CIE-LCH	lch(28.03, 88.78, 303.55°)
OKLab	oklab(40.08% 0.0067 -0.2142)
OKLCH	oklch(40.08% 0.214 271.8)
XYZ	xyz(10.3625, 5.4694, 45.8477)
Luminance	0.0547 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A28B8 #B6B828

analogous

#286EB8 #2A28B8 #7228B8

triadic

#2A28B8 #B82A28 #28B82A

tetradic

#2A28B8 #B8286E #B6B828 #28B872

square

#2A28B8 #B8286E #B6B828 #28B872

split-complementary

#2A28B8 #B87228 #6EB828

monochromatic

#131253 #1F1D86 #2A28B8 #4846D7 #7A79E2

Accessibility & contrast

On white

10.03

#2A28B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#2A28B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A28B8

10.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A28B8	#FFFFFF	#000000	##FFFFFF
##2A28B8	1.00	10.03	2.09	10.03
#FFFFFF	10.03	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049BC

Deuteranopia (green-blind)

#003BB6

Tritanopia (blue-blind)

#00546F

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2a28b8;
/* rgb */ color: rgb(42, 40, 184);
/* oklch */ color: oklch(40.1% 0.214 271.8);

Tailwind

colors: {
  custom: {
    50: '#7d65cf',
    500: '#2a28b8',
    950: '#000000',
  },
}

SCSS

$custom: #2a28b8;
$custom-light: #7d65cf;
$custom-dark: #000000;

JSON

{
  "hex": "#2a28b8",
  "rgb": {
    "r": 42,
    "g": 40,
    "b": 184
  },
  "hsl": {
    "h": 240.833,
    "s": 64.286,
    "l": 43.922
  },
  "oklch": {
    "l": 0.40078,
    "c": 0.21428,
    "h": 271.8
  },
  "luminance": 0.05471
}

Semantic roles & 50–950 ramp

primary

#2A28B8

secondary

#C8CA72

accent

#E741E5

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #2A28B8

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

Preview Lab → · Contrast checker → · Palette generator →