#2A1B9F#2A1B9F

#2A1B9F is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.7% C 0.196 H 275.1°. Best body text is #FFFFFF at 11.96:1 contrast (WCAG AA passes).

Color values

HEX	#2A1B9F
RGB	rgb(42, 27, 159)
HSL	hsl(247, 71%, 36%)
HSV	hsv(247, 83%, 62%)
CMYK	cmyk(73.6%, 83%, 0%, 37.6%)
CIE-LAB	lab(22.93, 47.65, -67.40)
CIE-LCH	lch(22.93, 82.54, 305.26°)
OKLab	oklab(35.68% 0.0173 -0.1948)
OKLCH	oklch(35.68% 0.196 275.1)
XYZ	xyz(7.6027, 3.7786, 33.1228)
Luminance	0.0378 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1B9F #909F1B

analogous

#1B4E9F #2A1B9F #6C1B9F

triadic

#2A1B9F #9F2A1B #1B9F2A

tetradic

#2A1B9F #9F1B4E #909F1B #1B9F6C

square

#2A1B9F #9F1B4E #909F1B #1B9F6C

split-complementary

#2A1B9F #9F6C1B #4E9F1B

monochromatic

#0E0936 #1C126B #2A1B9F #3824D3 #6353E2

Accessibility & contrast

On white

11.96

#2A1B9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#2A1B9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1B9F

11.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1B9F	#FFFFFF	#000000	##FFFFFF
##2A1B9F	1.00	11.96	1.76	11.96
#FFFFFF	11.96	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003CA3

Deuteranopia (green-blind)

#00319D

Tritanopia (blue-blind)

#00455E

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #2a1b9f;
/* rgb */ color: rgb(42, 27, 159);
/* oklch */ color: oklch(35.7% 0.196 275.1);

Tailwind

colors: {
  custom: {
    50: '#785cbd',
    500: '#2a1b9f',
    950: '#000000',
  },
}

SCSS

$custom: #2a1b9f;
$custom-light: #785cbd;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1b9f",
  "rgb": {
    "r": 42,
    "g": 27,
    "b": 159
  },
  "hsl": {
    "h": 246.818,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.3568,
    "c": 0.19561,
    "h": 275.1
  },
  "luminance": 0.03779
}

Semantic roles & 50–950 ramp

primary

#2A1B9F

secondary

#B7C551

accent

#EE3AD9

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #2A1B9F

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

Preview Lab → · Contrast checker → · Palette generator →