#2A1B77#2A1B77

#2A1B77 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.2% C 0.147 H 281.1°. Best body text is #FFFFFF at 13.80:1 contrast (WCAG AA passes).

Color values

HEX	#2A1B77
RGB	rgb(42, 27, 119)
HSL	hsl(250, 63%, 29%)
HSV	hsv(250, 77%, 47%)
CMYK	cmyk(64.7%, 77.3%, 0%, 53.3%)
CIE-LAB	lab(18.40, 34.93, -49.86)
CIE-LCH	lch(18.40, 60.88, 305.02°)
OKLab	oklab(31.19% 0.0283 -0.1438)
OKLCH	oklch(31.19% 0.147 281.1)
XYZ	xyz(4.6755, 2.6077, 17.7061)
Luminance	0.0261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1B77 #68771B

analogous

#1B3A77 #2A1B77 #581B77

triadic

#2A1B77 #772A1B #1B772A

tetradic

#2A1B77 #771B3A #68771B #1B7758

square

#2A1B77 #771B3A #68771B #1B7758

split-complementary

#2A1B77 #77581B #3A771B

monochromatic

#090619 #181045 #2A1B77 #3C26A9 #533AD2

Accessibility & contrast

On white

13.80

#2A1B77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#2A1B77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1B77

13.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1B77	#FFFFFF	#000000	##FFFFFF
##2A1B77	1.00	13.80	1.52	13.80
#FFFFFF	13.80	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307A

Deuteranopia (green-blind)

#002975

Tritanopia (blue-blind)

#003547

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #2a1b77;
/* rgb */ color: rgb(42, 27, 119);
/* oklch */ color: oklch(31.2% 0.147 281.1);

Tailwind

colors: {
  custom: {
    50: '#6f599f',
    500: '#2a1b77',
    950: '#000000',
  },
}

SCSS

$custom: #2a1b77;
$custom-light: #6f599f;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1b77",
  "rgb": {
    "r": 42,
    "g": 27,
    "b": 119
  },
  "hsl": {
    "h": 249.783,
    "s": 63.014,
    "l": 28.627
  },
  "oklch": {
    "l": 0.31188,
    "c": 0.14658,
    "h": 281.1
  },
  "luminance": 0.02608
}

Semantic roles & 50–950 ramp

primary

#2A1B77

secondary

#9AAB42

accent

#E642CB

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040F

muted

#7B797E

Preview Lab

Preview with #2A1B77

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

Preview Lab → · Contrast checker → · Palette generator →