#2D28B4#2D28B4

#2D28B4 is a dark, highly saturated blue. Relative luminance 0.054; OKLCH L 39.8% C 0.209 H 273.0°. Best body text is #FFFFFF at 10.12:1 contrast (WCAG AA passes).

Color values

HEX	#2D28B4
RGB	rgb(45, 40, 180)
HSL	hsl(242, 64%, 43%)
HSV	hsv(242, 78%, 71%)
CMYK	cmyk(75%, 77.8%, 0%, 29.4%)
CIE-LAB	lab(27.76, 48.01, -72.05)
CIE-LCH	lch(27.76, 86.58, 303.68°)
OKLab	oklab(39.81% 0.0111 -0.2085)
OKLCH	oklch(39.81% 0.209 273)
XYZ	xyz(10.0764, 5.3697, 43.6766)
Luminance	0.0537 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D28B4 #AFB428

analogous

#2869B4 #2D28B4 #7328B4

triadic

#2D28B4 #B42D28 #28B42D

tetradic

#2D28B4 #B42869 #AFB428 #28B473

square

#2D28B4 #B42869 #AFB428 #28B473

split-complementary

#2D28B4 #B47328 #69B428

monochromatic

#141250 #201D82 #2D28B4 #4944D5 #7A76E1

Accessibility & contrast

On white

10.12

#2D28B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#2D28B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D28B4

10.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D28B4	#FFFFFF	#000000	##FFFFFF
##2D28B4	1.00	10.12	2.07	10.12
#FFFFFF	10.12	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B8

Deuteranopia (green-blind)

#003BB2

Tritanopia (blue-blind)

#00526D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2d28b4;
/* rgb */ color: rgb(45, 40, 180);
/* oklch */ color: oklch(39.8% 0.209 273.0);

Tailwind

colors: {
  custom: {
    50: '#7d65cc',
    500: '#2d28b4',
    950: '#000000',
  },
}

SCSS

$custom: #2d28b4;
$custom-light: #7d65cc;
$custom-dark: #000000;

JSON

{
  "hex": "#2d28b4",
  "rgb": {
    "r": 45,
    "g": 40,
    "b": 180
  },
  "hsl": {
    "h": 242.143,
    "s": 63.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.39806,
    "c": 0.20878,
    "h": 273
  },
  "luminance": 0.05371
}

Semantic roles & 50–950 ramp

primary

#2D28B4

secondary

#C5C870

accent

#E741E1

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0B0614

muted

#7C7A82

Preview Lab

Preview with #2D28B4

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

Preview Lab → · Contrast checker → · Palette generator →