#2A1B7A#2A1B7A

#2A1B7A is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.5% C 0.150 H 280.6°. Best body text is #FFFFFF at 13.67:1 contrast (WCAG AA passes).

Color values

HEX	#2A1B7A
RGB	rgb(42, 27, 122)
HSL	hsl(249, 64%, 29%)
HSV	hsv(249, 78%, 48%)
CMYK	cmyk(65.6%, 77.9%, 0%, 52.2%)
CIE-LAB	lab(18.72, 35.92, -51.25)
CIE-LCH	lch(18.72, 62.59, 305.02°)
OKLab	oklab(31.51% 0.0276 -0.1479)
OKLCH	oklch(31.51% 0.15 280.6)
XYZ	xyz(4.8585, 2.6809, 18.6700)
Luminance	0.0268 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1B7A #6B7A1B

analogous

#1B3C7A #2A1B7A #5A1B7A

triadic

#2A1B7A #7A2A1B #1B7A2A

tetradic

#2A1B7A #7A1B3C #6B7A1B #1B7A5A

square

#2A1B7A #7A1B3C #6B7A1B #1B7A5A

split-complementary

#2A1B7A #7A5A1B #3C7A1B

monochromatic

#090619 #191048 #2A1B7A #3B26AC #543CD4

Accessibility & contrast

On white

13.67

#2A1B7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#2A1B7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1B7A

13.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1B7A	#FFFFFF	#000000	##FFFFFF
##2A1B7A	1.00	13.67	1.54	13.67
#FFFFFF	13.67	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317D

Deuteranopia (green-blind)

#002A78

Tritanopia (blue-blind)

#003649

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #2a1b7a;
/* rgb */ color: rgb(42, 27, 122);
/* oklch */ color: oklch(31.5% 0.150 280.6);

Tailwind

colors: {
  custom: {
    50: '#6f5aa1',
    500: '#2a1b7a',
    950: '#000000',
  },
}

SCSS

$custom: #2a1b7a;
$custom-light: #6f5aa1;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1b7a",
  "rgb": {
    "r": 42,
    "g": 27,
    "b": 122
  },
  "hsl": {
    "h": 249.474,
    "s": 63.758,
    "l": 29.216
  },
  "oklch": {
    "l": 0.31508,
    "c": 0.15043,
    "h": 280.6
  },
  "luminance": 0.02681
}

Semantic roles & 50–950 ramp

primary

#2A1B7A

secondary

#9DAE43

accent

#E741CD

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #2A1B7A

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

Preview Lab → · Contrast checker → · Palette generator →