#2D28B5#2D28B5

#2D28B5 is a dark, highly saturated blue. Relative luminance 0.054; OKLCH L 39.9% C 0.210 H 273.0°. Best body text is #FFFFFF at 10.08:1 contrast (WCAG AA passes).

Color values

HEX	#2D28B5
RGB	rgb(45, 40, 181)
HSL	hsl(242, 64%, 43%)
HSV	hsv(242, 78%, 71%)
CMYK	cmyk(75.1%, 77.9%, 0%, 29%)
CIE-LAB	lab(27.87, 48.33, -72.46)
CIE-LCH	lch(27.87, 87.10, 303.70°)
OKLab	oklab(39.92% 0.0109 -0.2097)
OKLCH	oklch(39.92% 0.21 273)
XYZ	xyz(10.1787, 5.4106, 44.2150)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D28B5 #B0B528

analogous

#2869B5 #2D28B5 #7328B5

triadic

#2D28B5 #B52D28 #28B52D

tetradic

#2D28B5 #B52869 #B0B528 #28B573

square

#2D28B5 #B52869 #B0B528 #28B573

split-complementary

#2D28B5 #B57328 #69B528

monochromatic

#141251 #211D83 #2D28B5 #4A44D6 #7A77E1

Accessibility & contrast

On white

10.08

#2D28B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#2D28B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D28B5

10.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D28B5	#FFFFFF	#000000	##FFFFFF
##2D28B5	1.00	10.08	2.08	10.08
#FFFFFF	10.08	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B9

Deuteranopia (green-blind)

#003BB3

Tritanopia (blue-blind)

#00536E

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2d28b5;
/* rgb */ color: rgb(45, 40, 181);
/* oklch */ color: oklch(39.9% 0.210 273.0);

Tailwind

colors: {
  custom: {
    50: '#7d65cd',
    500: '#2d28b5',
    950: '#000000',
  },
}

SCSS

$custom: #2d28b5;
$custom-light: #7d65cd;
$custom-dark: #000000;

JSON

{
  "hex": "#2d28b5",
  "rgb": {
    "r": 45,
    "g": 40,
    "b": 181
  },
  "hsl": {
    "h": 242.128,
    "s": 63.801,
    "l": 43.333
  },
  "oklch": {
    "l": 0.39916,
    "c": 0.20996,
    "h": 273
  },
  "luminance": 0.05412
}

Semantic roles & 50–950 ramp

primary

#2D28B5

secondary

#C5C870

accent

#E741E1

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0B0614

muted

#7C7A82

Preview Lab

Preview with #2D28B5

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

Preview Lab → · Contrast checker → · Palette generator →