#2847B2#2847B2

#2847B2 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.4% C 0.174 H 266.7°. Best body text is #FFFFFF at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#2847B2
RGB	rgb(40, 71, 178)
HSL	hsl(227, 63%, 43%)
HSV	hsv(227, 78%, 70%)
CMYK	cmyk(77.5%, 60.1%, 0%, 30.2%)
CIE-LAB	lab(34.34, 27.88, -60.06)
CIE-LCH	lch(34.34, 66.22, 294.90°)
OKLab	oklab(44.45% -0.0101 -0.1735)
OKLCH	oklch(44.45% 0.174 266.7)
XYZ	xyz(11.1614, 8.1707, 43.0997)
Luminance	0.0817 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2847B2 #B29328

analogous

#288CB2 #2847B2 #4E28B2

triadic

#2847B2 #B22847 #47B228

tetradic

#2847B2 #B2288C #B29328 #28B24E

square

#2847B2 #B2288C #B29328 #28B24E

split-complementary

#2847B2 #B24E28 #8CB228

monochromatic

#121F4E #1D3380 #2847B2 #4363D5 #758DE0

Accessibility & contrast

On white

7.97

#2847B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#2847B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2847B2

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2847B2	#FFFFFF	#000000	##FFFFFF
##2847B2	1.00	7.97	2.63	7.97
#FFFFFF	7.97	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B6

Deuteranopia (green-blind)

#004BB0

Tritanopia (blue-blind)

#006275

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #2847b2;
/* rgb */ color: rgb(40, 71, 178);
/* oklch */ color: oklch(44.4% 0.174 266.7);

Tailwind

colors: {
  custom: {
    50: '#7879ca',
    500: '#2847b2',
    950: '#000000',
  },
}

SCSS

$custom: #2847b2;
$custom-light: #7879ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2847b2",
  "rgb": {
    "r": 40,
    "g": 71,
    "b": 178
  },
  "hsl": {
    "h": 226.522,
    "s": 63.303,
    "l": 42.745
  },
  "oklch": {
    "l": 0.44446,
    "c": 0.17385,
    "h": 266.7
  },
  "luminance": 0.08172
}

Semantic roles & 50–950 ramp

primary

#2847B2

secondary

#C7B36F

accent

#C141E6

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #2847B2

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

Preview Lab → · Contrast checker → · Palette generator →