#2A1B79#2A1B79

#2A1B79 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.4% C 0.149 H 280.7°. Best body text is #FFFFFF at 13.71:1 contrast (WCAG AA passes).

Color values

HEX	#2A1B79
RGB	rgb(42, 27, 121)
HSL	hsl(250, 64%, 29%)
HSV	hsv(250, 78%, 47%)
CMYK	cmyk(65.3%, 77.7%, 0%, 52.5%)
CIE-LAB	lab(18.61, 35.59, -50.79)
CIE-LCH	lch(18.61, 62.02, 305.02°)
OKLab	oklab(31.4% 0.0278 -0.1465)
OKLCH	oklch(31.4% 0.149 280.7)
XYZ	xyz(4.7969, 2.6562, 18.3454)
Luminance	0.0266 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1B79 #6A791B

analogous

#1B3B79 #2A1B79 #591B79

triadic

#2A1B79 #792A1B #1B792A

tetradic

#2A1B79 #791B3B #6A791B #1B7959

square

#2A1B79 #791B3B #6A791B #1B7959

split-complementary

#2A1B79 #79591B #3B791B

monochromatic

#090619 #191047 #2A1B79 #3B26AB #533BD3

Accessibility & contrast

On white

13.71

#2A1B79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#2A1B79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1B79

13.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1B79	#FFFFFF	#000000	##FFFFFF
##2A1B79	1.00	13.71	1.53	13.71
#FFFFFF	13.71	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317C

Deuteranopia (green-blind)

#002A77

Tritanopia (blue-blind)

#003649

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #2a1b79;
/* rgb */ color: rgb(42, 27, 121);
/* oklch */ color: oklch(31.4% 0.149 280.7);

Tailwind

colors: {
  custom: {
    50: '#6f5aa1',
    500: '#2a1b79',
    950: '#000000',
  },
}

SCSS

$custom: #2a1b79;
$custom-light: #6f5aa1;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1b79",
  "rgb": {
    "r": 42,
    "g": 27,
    "b": 121
  },
  "hsl": {
    "h": 249.574,
    "s": 63.514,
    "l": 29.02
  },
  "oklch": {
    "l": 0.31401,
    "c": 0.14916,
    "h": 280.7
  },
  "luminance": 0.02657
}

Semantic roles & 50–950 ramp

primary

#2A1B79

secondary

#9CAD43

accent

#E741CC

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#08040F

muted

#7B797F

Preview Lab

Preview with #2A1B79

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

Preview Lab → · Contrast checker → · Palette generator →