#2D28A3#2D28A3

#2D28A3 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 38.0% C 0.188 H 274.5°. Best body text is #FFFFFF at 10.80:1 contrast (WCAG AA passes).

Color values

HEX	#2D28A3
RGB	rgb(45, 40, 163)
HSL	hsl(242, 61%, 40%)
HSV	hsv(242, 75%, 64%)
CMYK	cmyk(72.4%, 75.5%, 0%, 36.1%)
CIE-LAB	lab(25.92, 42.47, -64.87)
CIE-LCH	lch(25.92, 77.54, 303.21°)
OKLab	oklab(37.96% 0.0147 -0.1876)
OKLCH	oklch(37.96% 0.188 274.5)
XYZ	xyz(8.4496, 4.7190, 35.1088)
Luminance	0.0472 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D28A3 #9EA328

analogous

#2861A3 #2D28A3 #6B28A3

triadic

#2D28A3 #A32D28 #28A32D

tetradic

#2D28A3 #A32861 #9EA328 #28A36B

square

#2D28A3 #A32861 #9EA328 #28A36B

split-complementary

#2D28A3 #A36B28 #61A328

monochromatic

#121041 #1F1C72 #2D28A3 #403ACF #6F6BDB

Accessibility & contrast

On white

10.80

#2D28A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#2D28A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D28A3

10.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D28A3	#FFFFFF	#000000	##FFFFFF
##2D28A3	1.00	10.80	1.94	10.80
#FFFFFF	10.80	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043A7

Deuteranopia (green-blind)

#0038A1

Tritanopia (blue-blind)

#004C63

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2d28a3;
/* rgb */ color: rgb(45, 40, 163);
/* oklch */ color: oklch(38.0% 0.188 274.5);

Tailwind

colors: {
  custom: {
    50: '#7964bf',
    500: '#2d28a3',
    950: '#000000',
  },
}

SCSS

$custom: #2d28a3;
$custom-light: #7964bf;
$custom-dark: #000000;

JSON

{
  "hex": "#2d28a3",
  "rgb": {
    "r": 45,
    "g": 40,
    "b": 163
  },
  "hsl": {
    "h": 242.439,
    "s": 60.591,
    "l": 39.804
  },
  "oklch": {
    "l": 0.37961,
    "c": 0.18819,
    "h": 274.5
  },
  "luminance": 0.0472
}

Semantic roles & 50–950 ramp

primary

#2D28A3

secondary

#BDC166

accent

#E444DD

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #2D28A3

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

Preview Lab → · Contrast checker → · Palette generator →