#2823B1#2823B1

#2823B1 is a dark, highly saturated blue. Relative luminance 0.048; OKLCH L 38.6% C 0.211 H 272.0°. Best body text is #FFFFFF at 10.68:1 contrast (WCAG AA passes).

Color values

HEX	#2823B1
RGB	rgb(40, 35, 177)
HSL	hsl(242, 67%, 42%)
HSV	hsv(242, 80%, 69%)
CMYK	cmyk(77.4%, 80.2%, 0%, 30.6%)
CIE-LAB	lab(26.23, 49.25, -72.80)
CIE-LCH	lch(26.23, 87.89, 304.08°)
OKLab	oklab(38.56% 0.0075 -0.2107)
OKLCH	oklch(38.56% 0.211 272)
XYZ	xyz(9.4092, 4.8265, 42.0222)
Luminance	0.0483 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2823B1 #ACB123

analogous

#2365B1 #2823B1 #6F23B1

triadic

#2823B1 #B12823 #23B128

tetradic

#2823B1 #B12365 #ACB123 #23B16F

square

#2823B1 #B12365 #ACB123 #23B16F

split-complementary

#2823B1 #B16F23 #65B123

monochromatic

#110F4B #1C197E #2823B1 #3F39D8 #716CE2

Accessibility & contrast

On white

10.68

#2823B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#2823B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2823B1

10.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2823B1	#FFFFFF	#000000	##FFFFFF
##2823B1	1.00	10.68	1.97	10.68
#FFFFFF	10.68	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045B5

Deuteranopia (green-blind)

#0037AF

Tritanopia (blue-blind)

#004F6A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2823b1;
/* rgb */ color: rgb(40, 35, 177);
/* oklch */ color: oklch(38.6% 0.211 272.0);

Tailwind

colors: {
  custom: {
    50: '#7b62ca',
    500: '#2823b1',
    950: '#000000',
  },
}

SCSS

$custom: #2823b1;
$custom-light: #7b62ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2823b1",
  "rgb": {
    "r": 40,
    "g": 35,
    "b": 177
  },
  "hsl": {
    "h": 242.113,
    "s": 66.981,
    "l": 41.569
  },
  "oklch": {
    "l": 0.38557,
    "c": 0.21081,
    "h": 272
  },
  "luminance": 0.04828
}

Semantic roles & 50–950 ramp

primary

#2823B1

secondary

#C5C868

accent

#EA3EE4

background

#F8F5FC

surface

#EFEAF9

border

#CAC6D2

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #2823B1

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

Preview Lab → · Contrast checker → · Palette generator →