#2A1B78#2A1B78

#2A1B78 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.3% C 0.148 H 280.9°. Best body text is #FFFFFF at 13.76:1 contrast (WCAG AA passes).

Color values

HEX	#2A1B78
RGB	rgb(42, 27, 120)
HSL	hsl(250, 63%, 29%)
HSV	hsv(250, 78%, 47%)
CMYK	cmyk(65%, 77.5%, 0%, 52.9%)
CIE-LAB	lab(18.50, 35.26, -50.32)
CIE-LCH	lch(18.50, 61.45, 305.02°)
OKLab	oklab(31.29% 0.0281 -0.1452)
OKLCH	oklch(31.29% 0.148 280.9)
XYZ	xyz(4.7359, 2.6318, 18.0241)
Luminance	0.0263 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1B78 #69781B

analogous

#1B3B78 #2A1B78 #591B78

triadic

#2A1B78 #782A1B #1B782A

tetradic

#2A1B78 #781B3B #69781B #1B7859

square

#2A1B78 #781B3B #69781B #1B7859

split-complementary

#2A1B78 #78591B #3B781B

monochromatic

#090619 #191046 #2A1B78 #3B26AA #533BD3

Accessibility & contrast

On white

13.76

#2A1B78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#2A1B78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1B78

13.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1B78	#FFFFFF	#000000	##FFFFFF
##2A1B78	1.00	13.76	1.53	13.76
#FFFFFF	13.76	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307B

Deuteranopia (green-blind)

#002A76

Tritanopia (blue-blind)

#003548

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #2a1b78;
/* rgb */ color: rgb(42, 27, 120);
/* oklch */ color: oklch(31.3% 0.148 280.9);

Tailwind

colors: {
  custom: {
    50: '#6f59a0',
    500: '#2a1b78',
    950: '#000000',
  },
}

SCSS

$custom: #2a1b78;
$custom-light: #6f59a0;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1b78",
  "rgb": {
    "r": 42,
    "g": 27,
    "b": 120
  },
  "hsl": {
    "h": 249.677,
    "s": 63.265,
    "l": 28.824
  },
  "oklch": {
    "l": 0.31294,
    "c": 0.14787,
    "h": 280.9
  },
  "luminance": 0.02632
}

Semantic roles & 50–950 ramp

primary

#2A1B78

secondary

#9BAC43

accent

#E641CC

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#08040F

muted

#7B797F

Preview Lab

Preview with #2A1B78

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

Preview Lab → · Contrast checker → · Palette generator →