#2841B1#2841B1

#2841B1 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.2% C 0.180 H 268.0°. Best body text is #FFFFFF at 8.46:1 contrast (WCAG AA passes).

Color values

HEX	#2841B1
RGB	rgb(40, 65, 177)
HSL	hsl(229, 63%, 43%)
HSV	hsv(229, 77%, 69%)
CMYK	cmyk(77.4%, 63.3%, 0%, 30.6%)
CIE-LAB	lab(32.71, 31.45, -62.12)
CIE-LCH	lch(32.71, 69.63, 296.85°)
OKLab	oklab(43.21% -0.0063 -0.1797)
OKLCH	oklch(43.21% 0.18 268)
XYZ	xyz(10.6984, 7.4048, 42.4519)
Luminance	0.0741 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2841B1 #B19828

analogous

#2886B1 #2841B1 #5328B1

triadic

#2841B1 #B12841 #41B128

tetradic

#2841B1 #B12886 #B19828 #28B153

square

#2841B1 #B12886 #B19828 #28B153

split-complementary

#2841B1 #B15328 #86B128

monochromatic

#111C4D #1D2F7F #2841B1 #425DD4 #7488E0

Accessibility & contrast

On white

8.46

#2841B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#2841B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2841B1

8.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2841B1	#FFFFFF	#000000	##FFFFFF
##2841B1	1.00	8.46	2.48	8.46
#FFFFFF	8.46	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B5

Deuteranopia (green-blind)

#0047AF

Tritanopia (blue-blind)

#005E73

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #2841b1;
/* rgb */ color: rgb(40, 65, 177);
/* oklch */ color: oklch(43.2% 0.180 268.0);

Tailwind

colors: {
  custom: {
    50: '#7875c9',
    500: '#2841b1',
    950: '#000000',
  },
}

SCSS

$custom: #2841b1;
$custom-light: #7875c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2841b1",
  "rgb": {
    "r": 40,
    "g": 65,
    "b": 177
  },
  "hsl": {
    "h": 229.051,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.43214,
    "c": 0.17977,
    "h": 268
  },
  "luminance": 0.07406
}

Semantic roles & 50–950 ramp

primary

#2841B1

secondary

#C7B76E

accent

#C842E6

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2841B1

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

Preview Lab → · Contrast checker → · Palette generator →