#2827BB#2827BB

#2827BB is a dark, highly saturated blue. Relative luminance 0.055; OKLCH L 40.2% C 0.219 H 271.1°. Best body text is #FFFFFF at 10.01:1 contrast (WCAG AA passes).

Color values

HEX	#2827BB
RGB	rgb(40, 39, 187)
HSL	hsl(240, 65%, 44%)
HSV	hsv(240, 79%, 73%)
CMYK	cmyk(78.6%, 79.1%, 0%, 26.7%)
CIE-LAB	lab(28.08, 50.41, -75.68)
CIE-LCH	lch(28.08, 90.93, 303.66°)
OKLab	oklab(40.18% 0.0042 -0.2191)
OKLCH	oklch(40.18% 0.219 271.1)
XYZ	xyz(10.5672, 5.4888, 47.5066)
Luminance	0.0549 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2827BB #BABB27

analogous

#2770BB #2827BB #7227BB

triadic

#2827BB #BB2827 #27BB28

tetradic

#2827BB #BB2770 #BABB27 #27BB72

square

#2827BB #BB2770 #BABB27 #27BB72

split-complementary

#2827BB #BB7227 #70BB27

monochromatic

#121256 #1D1C88 #2827BB #4847D9 #7A79E3

Accessibility & contrast

On white

10.01

#2827BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#2827BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2827BB

10.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2827BB	#FFFFFF	#000000	##FFFFFF
##2827BB	1.00	10.01	2.10	10.01
#FFFFFF	10.01	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004ABF

Deuteranopia (green-blind)

#003BB8

Tritanopia (blue-blind)

#005571

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2827bb;
/* rgb */ color: rgb(40, 39, 187);
/* oklch */ color: oklch(40.2% 0.219 271.1);

Tailwind

colors: {
  custom: {
    50: '#7d64d1',
    500: '#2827bb',
    950: '#000000',
  },
}

SCSS

$custom: #2827bb;
$custom-light: #7d64d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2827bb",
  "rgb": {
    "r": 40,
    "g": 39,
    "b": 187
  },
  "hsl": {
    "h": 240.405,
    "s": 65.487,
    "l": 44.314
  },
  "oklch": {
    "l": 0.40184,
    "c": 0.21915,
    "h": 271.1
  },
  "luminance": 0.0549
}

Semantic roles & 50–950 ramp

primary

#2827BB

secondary

#CACB73

accent

#E83FE7

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0614

muted

#7D7A83

Preview Lab

Preview with #2827BB

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

Preview Lab → · Contrast checker → · Palette generator →