#2D28B8#2D28B8

#2D28B8 is a dark, highly saturated blue. Relative luminance 0.055; OKLCH L 40.2% C 0.213 H 272.7°. Best body text is #FFFFFF at 9.97:1 contrast (WCAG AA passes).

Color values

HEX	#2D28B8
RGB	rgb(45, 40, 184)
HSL	hsl(242, 64%, 44%)
HSV	hsv(242, 78%, 72%)
CMYK	cmyk(75.5%, 78.3%, 0%, 27.8%)
CIE-LAB	lab(28.21, 49.28, -73.69)
CIE-LCH	lch(28.21, 88.65, 303.77°)
OKLab	oklab(40.25% 0.0102 -0.2132)
OKLCH	oklch(40.25% 0.214 272.7)
XYZ	xyz(10.4898, 5.5351, 45.8536)
Luminance	0.0554 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D28B8 #B3B828

analogous

#286BB8 #2D28B8 #7528B8

triadic

#2D28B8 #B82D28 #28B82D

tetradic

#2D28B8 #B8286B #B3B828 #28B875

square

#2D28B8 #B8286B #B3B828 #28B875

split-complementary

#2D28B8 #B87528 #6BB828

monochromatic

#141253 #211D86 #2D28B8 #4B46D7 #7C79E2

Accessibility & contrast

On white

9.97

#2D28B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#2D28B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D28B8

9.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D28B8	#FFFFFF	#000000	##FFFFFF
##2D28B8	1.00	9.97	2.11	9.97
#FFFFFF	9.97	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049BC

Deuteranopia (green-blind)

#003BB6

Tritanopia (blue-blind)

#00546F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2d28b8;
/* rgb */ color: rgb(45, 40, 184);
/* oklch */ color: oklch(40.2% 0.213 272.7);

Tailwind

colors: {
  custom: {
    50: '#7e65cf',
    500: '#2d28b8',
    950: '#000000',
  },
}

SCSS

$custom: #2d28b8;
$custom-light: #7e65cf;
$custom-dark: #000000;

JSON

{
  "hex": "#2d28b8",
  "rgb": {
    "r": 45,
    "g": 40,
    "b": 184
  },
  "hsl": {
    "h": 242.083,
    "s": 64.286,
    "l": 43.922
  },
  "oklch": {
    "l": 0.40248,
    "c": 0.2135,
    "h": 272.7
  },
  "luminance": 0.05536
}

Semantic roles & 50–950 ramp

primary

#2D28B8

secondary

#C7CA72

accent

#E741E1

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #2D28B8

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

Preview Lab → · Contrast checker → · Palette generator →