#2B1C8C#2B1C8C

#2B1C8C is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.7% C 0.172 H 277.9°. Best body text is #FFFFFF at 12.75:1 contrast (WCAG AA passes).

Color values

HEX	#2B1C8C
RGB	rgb(43, 28, 140)
HSL	hsl(248, 67%, 33%)
HSV	hsv(248, 80%, 55%)
CMYK	cmyk(69.3%, 80%, 0%, 45.1%)
CIE-LAB	lab(20.97, 41.31, -58.90)
CIE-LCH	lch(20.97, 71.95, 305.04°)
OKLab	oklab(33.7% 0.0236 -0.1702)
OKLCH	oklch(33.7% 0.172 277.9)
XYZ	xyz(6.1436, 3.2370, 25.1069)
Luminance	0.0324 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1C8C #7D8C1C

analogous

#1C458C #2B1C8C #631C8C

triadic

#2B1C8C #8C2B1C #1C8C2B

tetradic

#2B1C8C #8C1C45 #7D8C1C #1C8C63

square

#2B1C8C #8C1C45 #7D8C1C #1C8C63

split-complementary

#2B1C8C #8C631C #458C1C

monochromatic

#0C0826 #1B1259 #2B1C8C #3B26BF #5C48DA

Accessibility & contrast

On white

12.75

#2B1C8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#2B1C8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1C8C

12.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1C8C	#FFFFFF	#000000	##FFFFFF
##2B1C8C	1.00	12.75	1.65	12.75
#FFFFFF	12.75	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378F

Deuteranopia (green-blind)

#002E8A

Tritanopia (blue-blind)

#003E54

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #2b1c8c;
/* rgb */ color: rgb(43, 28, 140);
/* oklch */ color: oklch(33.7% 0.172 277.9);

Tailwind

colors: {
  custom: {
    50: '#745baf',
    500: '#2b1c8c',
    950: '#000000',
  },
}

SCSS

$custom: #2b1c8c;
$custom-light: #745baf;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1c8c",
  "rgb": {
    "r": 43,
    "g": 28,
    "b": 140
  },
  "hsl": {
    "h": 248.036,
    "s": 66.667,
    "l": 32.941
  },
  "oklch": {
    "l": 0.33698,
    "c": 0.1718,
    "h": 277.9
  },
  "luminance": 0.03238
}

Semantic roles & 50–950 ramp

primary

#2B1C8C

secondary

#ADBC48

accent

#EA3ED3

background

#F7F5FA

surface

#EEE9F5

border

#C9C5CF

text

#090410

muted

#7B797F

Preview Lab

Preview with #2B1C8C

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

Preview Lab → · Contrast checker → · Palette generator →