#2843B2#2843B2

#2843B2 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.7% C 0.179 H 267.6°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#2843B2
RGB	rgb(40, 67, 178)
HSL	hsl(228, 63%, 43%)
HSV	hsv(228, 78%, 70%)
CMYK	cmyk(77.5%, 62.4%, 0%, 30.2%)
CIE-LAB	lab(33.30, 30.52, -61.75)
CIE-LCH	lch(33.30, 68.88, 296.30°)
OKLab	oklab(43.68% -0.0076 -0.1785)
OKLCH	oklch(43.68% 0.179 267.6)
XYZ	xyz(10.9153, 7.6786, 43.0177)
Luminance	0.0768 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2843B2 #B29728

analogous

#2888B2 #2843B2 #5228B2

triadic

#2843B2 #B22843 #43B228

tetradic

#2843B2 #B22888 #B29728 #28B252

square

#2843B2 #B22888 #B29728 #28B252

split-complementary

#2843B2 #B25228 #88B228

monochromatic

#121D4E #1D3080 #2843B2 #435FD5 #758AE0

Accessibility & contrast

On white

8.28

#2843B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#2843B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2843B2

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2843B2	#FFFFFF	#000000	##FFFFFF
##2843B2	1.00	8.28	2.54	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B6

Deuteranopia (green-blind)

#0048B0

Tritanopia (blue-blind)

#006074

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2843b2;
/* rgb */ color: rgb(40, 67, 178);
/* oklch */ color: oklch(43.7% 0.179 267.6);

Tailwind

colors: {
  custom: {
    50: '#7876ca',
    500: '#2843b2',
    950: '#000000',
  },
}

SCSS

$custom: #2843b2;
$custom-light: #7876ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2843b2",
  "rgb": {
    "r": 40,
    "g": 67,
    "b": 178
  },
  "hsl": {
    "h": 228.261,
    "s": 63.303,
    "l": 42.745
  },
  "oklch": {
    "l": 0.4368,
    "c": 0.1787,
    "h": 267.6
  },
  "luminance": 0.0768
}

Semantic roles & 50–950 ramp

primary

#2843B2

secondary

#C7B66F

accent

#C641E6

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2843B2

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

Preview Lab → · Contrast checker → · Palette generator →