#2A28A5#2A28A5

#2A28A5 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 38.0% C 0.191 H 273.2°. Best body text is #FFFFFF at 10.80:1 contrast (WCAG AA passes).

Color values

HEX	#2A28A5
RGB	rgb(42, 40, 165)
HSL	hsl(241, 61%, 40%)
HSV	hsv(241, 76%, 65%)
CMYK	cmyk(74.5%, 75.8%, 0%, 35.3%)
CIE-LAB	lab(25.94, 42.85, -66.06)
CIE-LCH	lch(25.94, 78.74, 302.97°)
OKLab	oklab(37.99% 0.0105 -0.1911)
OKLCH	oklch(37.99% 0.191 273.2)
XYZ	xyz(8.5029, 4.7256, 36.0540)
Luminance	0.0473 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A28A5 #A3A528

analogous

#2864A5 #2A28A5 #6828A5

triadic

#2A28A5 #A52A28 #28A52A

tetradic

#2A28A5 #A52864 #A3A528 #28A568

square

#2A28A5 #A52864 #A3A528 #28A568

split-complementary

#2A28A5 #A56828 #64A528

monochromatic

#111042 #1D1C74 #2A28A5 #3D3BCF #6E6CDB

Accessibility & contrast

On white

10.80

#2A28A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#2A28A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A28A5

10.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A28A5	#FFFFFF	#000000	##FFFFFF
##2A28A5	1.00	10.80	1.95	10.80
#FFFFFF	10.80	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043A9

Deuteranopia (green-blind)

#0037A3

Tritanopia (blue-blind)

#004D65

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2a28a5;
/* rgb */ color: rgb(42, 40, 165);
/* oklch */ color: oklch(38.0% 0.191 273.2);

Tailwind

colors: {
  custom: {
    50: '#7864c1',
    500: '#2a28a5',
    950: '#000000',
  },
}

SCSS

$custom: #2a28a5;
$custom-light: #7864c1;
$custom-dark: #000000;

JSON

{
  "hex": "#2a28a5",
  "rgb": {
    "r": 42,
    "g": 40,
    "b": 165
  },
  "hsl": {
    "h": 240.96,
    "s": 60.976,
    "l": 40.196
  },
  "oklch": {
    "l": 0.37987,
    "c": 0.19143,
    "h": 273.2
  },
  "luminance": 0.04726
}

Semantic roles & 50–950 ramp

primary

#2A28A5

secondary

#C0C267

accent

#E444E2

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #2A28A5

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

Preview Lab → · Contrast checker → · Palette generator →