#2847B0#2847B0

#2847B0 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.3% C 0.171 H 266.6°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#2847B0
RGB	rgb(40, 71, 176)
HSL	hsl(226, 63%, 42%)
HSV	hsv(226, 77%, 69%)
CMYK	cmyk(77.3%, 59.7%, 0%, 31%)
CIE-LAB	lab(34.17, 27.12, -59.14)
CIE-LCH	lch(34.17, 65.07, 294.64°)
OKLab	oklab(44.27% -0.0102 -0.1708)
OKLCH	oklch(44.27% 0.171 266.6)
XYZ	xyz(10.9620, 8.0909, 42.0499)
Luminance	0.0809 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2847B0 #B09128

analogous

#288BB0 #2847B0 #4D28B0

triadic

#2847B0 #B02847 #47B028

tetradic

#2847B0 #B0288B #B09128 #28B04D

square

#2847B0 #B0288B #B09128 #28B04D

split-complementary

#2847B0 #B04D28 #8BB028

monochromatic

#111F4C #1D337E #2847B0 #4163D4 #738CDF

Accessibility & contrast

On white

8.02

#2847B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#2847B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2847B0

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2847B0	#FFFFFF	#000000	##FFFFFF
##2847B0	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B4

Deuteranopia (green-blind)

#004AAE

Tritanopia (blue-blind)

#006274

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #2847b0;
/* rgb */ color: rgb(40, 71, 176);
/* oklch */ color: oklch(44.3% 0.171 266.6);

Tailwind

colors: {
  custom: {
    50: '#7779c8',
    500: '#2847b0',
    950: '#000000',
  },
}

SCSS

$custom: #2847b0;
$custom-light: #7779c8;
$custom-dark: #000000;

JSON

{
  "hex": "#2847b0",
  "rgb": {
    "r": 40,
    "g": 71,
    "b": 176
  },
  "hsl": {
    "h": 226.324,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.44272,
    "c": 0.17115,
    "h": 266.6
  },
  "luminance": 0.08092
}

Semantic roles & 50–950 ramp

primary

#2847B0

secondary

#C6B26D

accent

#C142E6

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #2847B0

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

Preview Lab → · Contrast checker → · Palette generator →