#2B28B4#2B28B4

#2B28B4 is a dark, highly saturated blue. Relative luminance 0.053; OKLCH L 39.7% C 0.209 H 272.4°. Best body text is #FFFFFF at 10.17:1 contrast (WCAG AA passes).

Color values

HEX	#2B28B4
RGB	rgb(43, 40, 180)
HSL	hsl(241, 64%, 43%)
HSV	hsv(241, 78%, 71%)
CMYK	cmyk(76.1%, 77.8%, 0%, 29.4%)
CIE-LAB	lab(27.64, 47.85, -72.25)
CIE-LCH	lch(27.64, 86.66, 303.52°)
OKLab	oklab(39.69% 0.0087 -0.2091)
OKLCH	oklch(39.69% 0.209 272.4)
XYZ	xyz(9.9905, 5.3254, 43.6725)
Luminance	0.0533 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B28B4 #B1B428

analogous

#286BB4 #2B28B4 #7128B4

triadic

#2B28B4 #B42B28 #28B42B

tetradic

#2B28B4 #B4286B #B1B428 #28B471

square

#2B28B4 #B4286B #B1B428 #28B471

split-complementary

#2B28B4 #B47128 #6BB428

monochromatic

#131250 #1F1D82 #2B28B4 #4744D5 #7876E1

Accessibility & contrast

On white

10.17

#2B28B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#2B28B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B28B4

10.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B28B4	#FFFFFF	#000000	##FFFFFF
##2B28B4	1.00	10.17	2.07	10.17
#FFFFFF	10.17	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B8

Deuteranopia (green-blind)

#003AB2

Tritanopia (blue-blind)

#00526D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2b28b4;
/* rgb */ color: rgb(43, 40, 180);
/* oklch */ color: oklch(39.7% 0.209 272.4);

Tailwind

colors: {
  custom: {
    50: '#7c65cc',
    500: '#2b28b4',
    950: '#000000',
  },
}

SCSS

$custom: #2b28b4;
$custom-light: #7c65cc;
$custom-dark: #000000;

JSON

{
  "hex": "#2b28b4",
  "rgb": {
    "r": 43,
    "g": 40,
    "b": 180
  },
  "hsl": {
    "h": 241.286,
    "s": 63.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.39689,
    "c": 0.20929,
    "h": 272.4
  },
  "luminance": 0.05326
}

Semantic roles & 50–950 ramp

primary

#2B28B4

secondary

#C6C870

accent

#E741E3

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0614

muted

#7C7A82

Preview Lab

Preview with #2B28B4

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

Preview Lab → · Contrast checker → · Palette generator →