#2B278D#2B278D

#2B278D is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.4% C 0.162 H 276.0°. Best body text is #FFFFFF at 11.81:1 contrast (WCAG AA passes).

Color values

HEX	#2B278D
RGB	rgb(43, 39, 141)
HSL	hsl(242, 57%, 35%)
HSV	hsv(242, 72%, 55%)
CMYK	cmyk(69.5%, 72.3%, 0%, 44.7%)
CIE-LAB	lab(23.29, 35.39, -55.69)
CIE-LCH	lch(23.29, 65.98, 302.43°)
OKLab	oklab(35.38% 0.0168 -0.1609)
OKLCH	oklch(35.38% 0.162 276)
XYZ	xyz(6.5279, 3.8871, 25.6004)
Luminance	0.0389 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B278D #898D27

analogous

#27568D #2B278D #5E278D

triadic

#2B278D #8D2B27 #278D2B

tetradic

#2B278D #8D2756 #898D27 #278D5E

square

#2B278D #8D2756 #898D27 #278D5E

split-complementary

#2B278D #8D5E27 #568D27

monochromatic

#0E0C2D #1C1A5D #2B278D #3A34BD #615CD2

Accessibility & contrast

On white

11.81

#2B278D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#2B278D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B278D

11.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B278D	#FFFFFF	#000000	##FFFFFF
##2B278D	1.00	11.81	1.78	11.81
#FFFFFF	11.81	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C90

Deuteranopia (green-blind)

#00338B

Tritanopia (blue-blind)

#004357

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2b278d;
/* rgb */ color: rgb(43, 39, 141);
/* oklch */ color: oklch(35.4% 0.162 276.0);

Tailwind

colors: {
  custom: {
    50: '#7362af',
    500: '#2b278d',
    950: '#000000',
  },
}

SCSS

$custom: #2b278d;
$custom-light: #7362af;
$custom-dark: #000000;

JSON

{
  "hex": "#2b278d",
  "rgb": {
    "r": 43,
    "g": 39,
    "b": 141
  },
  "hsl": {
    "h": 242.353,
    "s": 56.667,
    "l": 35.294
  },
  "oklch": {
    "l": 0.35375,
    "c": 0.16176,
    "h": 276
  },
  "luminance": 0.03888
}

Semantic roles & 50–950 ramp

primary

#2B278D

secondary

#B3B759

accent

#E048DA

background

#F7F5FA

surface

#EDEAF5

border

#C8C6CF

text

#090511

muted

#7B7980

Preview Lab

Preview with #2B278D

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

Preview Lab → · Contrast checker → · Palette generator →