#2B1C8E#2B1C8E

#2B1C8E is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.9% C 0.174 H 277.6°. Best body text is #FFFFFF at 12.66:1 contrast (WCAG AA passes).

Color values

HEX	#2B1C8E
RGB	rgb(43, 28, 142)
HSL	hsl(248, 67%, 33%)
HSV	hsv(248, 80%, 56%)
CMYK	cmyk(69.7%, 80.3%, 0%, 44.3%)
CIE-LAB	lab(21.19, 41.95, -59.78)
CIE-LCH	lch(21.19, 73.03, 305.06°)
OKLab	oklab(33.92% 0.0231 -0.1727)
OKLCH	oklch(33.92% 0.174 277.6)
XYZ	xyz(6.2924, 3.2965, 25.8906)
Luminance	0.0330 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1C8E #7F8E1C

analogous

#1C468E #2B1C8E #641C8E

triadic

#2B1C8E #8E2B1C #1C8E2B

tetradic

#2B1C8E #8E1C46 #7F8E1C #1C8E64

square

#2B1C8E #8E1C46 #7F8E1C #1C8E64

split-complementary

#2B1C8E #8E641C #468E1C

monochromatic

#0C0828 #1C125B #2B1C8E #3A26C1 #5C49DB

Accessibility & contrast

On white

12.66

#2B1C8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#2B1C8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1C8E

12.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1C8E	#FFFFFF	#000000	##FFFFFF
##2B1C8E	1.00	12.66	1.66	12.66
#FFFFFF	12.66	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003791

Deuteranopia (green-blind)

#002E8C

Tritanopia (blue-blind)

#003E55

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #2b1c8e;
/* rgb */ color: rgb(43, 28, 142);
/* oklch */ color: oklch(33.9% 0.174 277.6);

Tailwind

colors: {
  custom: {
    50: '#745bb0',
    500: '#2b1c8e',
    950: '#000000',
  },
}

SCSS

$custom: #2b1c8e;
$custom-light: #745bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1c8e",
  "rgb": {
    "r": 43,
    "g": 28,
    "b": 142
  },
  "hsl": {
    "h": 247.895,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.33921,
    "c": 0.17425,
    "h": 277.6
  },
  "luminance": 0.03297
}

Semantic roles & 50–950 ramp

primary

#2B1C8E

secondary

#AEBD49

accent

#EA3ED3

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #2B1C8E

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

Preview Lab → · Contrast checker → · Palette generator →