#2844B1#2844B1

#2844B1 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.8% C 0.176 H 267.3°. Best body text is #FFFFFF at 8.23:1 contrast (WCAG AA passes).

Color values

HEX	#2844B1
RGB	rgb(40, 68, 177)
HSL	hsl(228, 63%, 43%)
HSV	hsv(228, 77%, 69%)
CMYK	cmyk(77.4%, 61.6%, 0%, 30.6%)
CIE-LAB	lab(33.47, 29.48, -60.87)
CIE-LCH	lch(33.47, 67.64, 295.84°)
OKLab	oklab(43.78% -0.0082 -0.176)
OKLCH	oklch(43.78% 0.176 267.3)
XYZ	xyz(10.8752, 7.7585, 42.5108)
Luminance	0.0776 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2844B1 #B19528

analogous

#2889B1 #2844B1 #5028B1

triadic

#2844B1 #B12844 #44B128

tetradic

#2844B1 #B12889 #B19528 #28B150

square

#2844B1 #B12889 #B19528 #28B150

split-complementary

#2844B1 #B15028 #89B128

monochromatic

#111E4D #1D317F #2844B1 #4260D4 #748AE0

Accessibility & contrast

On white

8.23

#2844B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#2844B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2844B1

8.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2844B1	#FFFFFF	#000000	##FFFFFF
##2844B1	1.00	8.23	2.55	8.23
#FFFFFF	8.23	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B5

Deuteranopia (green-blind)

#0048AF

Tritanopia (blue-blind)

#006074

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #2844b1;
/* rgb */ color: rgb(40, 68, 177);
/* oklch */ color: oklch(43.8% 0.176 267.3);

Tailwind

colors: {
  custom: {
    50: '#7877c9',
    500: '#2844b1',
    950: '#000000',
  },
}

SCSS

$custom: #2844b1;
$custom-light: #7877c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2844b1",
  "rgb": {
    "r": 40,
    "g": 68,
    "b": 177
  },
  "hsl": {
    "h": 227.737,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.4378,
    "c": 0.17616,
    "h": 267.3
  },
  "luminance": 0.0776
}

Semantic roles & 50–950 ramp

primary

#2844B1

secondary

#C7B56E

accent

#C542E6

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2844B1

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

Preview Lab → · Contrast checker → · Palette generator →