#2B28B5#2B28B5

#2B28B5 is a dark, highly saturated blue. Relative luminance 0.054; OKLCH L 39.8% C 0.210 H 272.3°. Best body text is #FFFFFF at 10.13:1 contrast (WCAG AA passes).

Color values

HEX	#2B28B5
RGB	rgb(43, 40, 181)
HSL	hsl(241, 64%, 43%)
HSV	hsv(241, 78%, 71%)
CMYK	cmyk(76.2%, 77.9%, 0%, 29%)
CIE-LAB	lab(27.75, 48.18, -72.66)
CIE-LCH	lch(27.75, 87.18, 303.54°)
OKLab	oklab(39.8% 0.0085 -0.2103)
OKLCH	oklch(39.8% 0.21 272.3)
XYZ	xyz(10.0927, 5.3663, 44.2110)
Luminance	0.0537 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B28B5 #B2B528

analogous

#286BB5 #2B28B5 #7228B5

triadic

#2B28B5 #B52B28 #28B52B

tetradic

#2B28B5 #B5286B #B2B528 #28B572

square

#2B28B5 #B5286B #B2B528 #28B572

split-complementary

#2B28B5 #B57228 #6BB528

monochromatic

#131251 #1F1D83 #2B28B5 #4844D6 #7977E1

Accessibility & contrast

On white

10.13

#2B28B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#2B28B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B28B5

10.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B28B5	#FFFFFF	#000000	##FFFFFF
##2B28B5	1.00	10.13	2.07	10.13
#FFFFFF	10.13	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B9

Deuteranopia (green-blind)

#003AB3

Tritanopia (blue-blind)

#00536E

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2b28b5;
/* rgb */ color: rgb(43, 40, 181);
/* oklch */ color: oklch(39.8% 0.210 272.3);

Tailwind

colors: {
  custom: {
    50: '#7c65cd',
    500: '#2b28b5',
    950: '#000000',
  },
}

SCSS

$custom: #2b28b5;
$custom-light: #7c65cd;
$custom-dark: #000000;

JSON

{
  "hex": "#2b28b5",
  "rgb": {
    "r": 43,
    "g": 40,
    "b": 181
  },
  "hsl": {
    "h": 241.277,
    "s": 63.801,
    "l": 43.333
  },
  "oklch": {
    "l": 0.398,
    "c": 0.21048,
    "h": 272.3
  },
  "luminance": 0.05367
}

Semantic roles & 50–950 ramp

primary

#2B28B5

secondary

#C7C870

accent

#E741E3

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0B0614

muted

#7C7A82

Preview Lab

Preview with #2B28B5

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

Preview Lab → · Contrast checker → · Palette generator →