#2B1C9F#2B1C9F

#2B1C9F is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.9% C 0.195 H 275.4°. Best body text is #FFFFFF at 11.87:1 contrast (WCAG AA passes).

Color values

HEX	#2B1C9F
RGB	rgb(43, 28, 159)
HSL	hsl(247, 70%, 37%)
HSV	hsv(247, 82%, 62%)
CMYK	cmyk(73%, 82.4%, 0%, 37.6%)
CIE-LAB	lab(23.16, 47.26, -67.01)
CIE-LCH	lch(23.16, 82.00, 305.19°)
OKLab	oklab(35.86% 0.0183 -0.1937)
OKLCH	oklch(35.86% 0.195 275.4)
XYZ	xyz(7.6675, 3.8466, 33.1325)
Luminance	0.0385 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1C9F #909F1C

analogous

#1C4F9F #2B1C9F #6D1C9F

triadic

#2B1C9F #9F2B1C #1C9F2B

tetradic

#2B1C9F #9F1C4F #909F1C #1C9F6D

square

#2B1C9F #9F1C4F #909F1C #1C9F6D

split-complementary

#2B1C9F #9F6D1C #4F9F1C

monochromatic

#0F0A37 #1D136B #2B1C9F #3925D3 #6554E1

Accessibility & contrast

On white

11.87

#2B1C9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#2B1C9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1C9F

11.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1C9F	#FFFFFF	#000000	##FFFFFF
##2B1C9F	1.00	11.87	1.77	11.87
#FFFFFF	11.87	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003DA3

Deuteranopia (green-blind)

#00319D

Tritanopia (blue-blind)

#00455F

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #2b1c9f;
/* rgb */ color: rgb(43, 28, 159);
/* oklch */ color: oklch(35.9% 0.195 275.4);

Tailwind

colors: {
  custom: {
    50: '#785dbd',
    500: '#2b1c9f',
    950: '#000000',
  },
}

SCSS

$custom: #2b1c9f;
$custom-light: #785dbd;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1c9f",
  "rgb": {
    "r": 43,
    "g": 28,
    "b": 159
  },
  "hsl": {
    "h": 246.87,
    "s": 70.053,
    "l": 36.667
  },
  "oklch": {
    "l": 0.3586,
    "c": 0.19459,
    "h": 275.4
  },
  "luminance": 0.03847
}

Semantic roles & 50–950 ramp

primary

#2B1C9F

secondary

#B7C453

accent

#ED3BD8

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #2B1C9F

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

Preview Lab → · Contrast checker → · Palette generator →