#2A1B76#2A1B76

#2A1B76 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.1% C 0.145 H 281.3°. Best body text is #FFFFFF at 13.84:1 contrast (WCAG AA passes).

Color values

HEX	#2A1B76
RGB	rgb(42, 27, 118)
HSL	hsl(250, 63%, 28%)
HSV	hsv(250, 77%, 46%)
CMYK	cmyk(64.4%, 77.1%, 0%, 53.7%)
CIE-LAB	lab(18.29, 34.60, -49.39)
CIE-LCH	lch(18.29, 60.30, 305.02°)
OKLab	oklab(31.08% 0.0286 -0.1424)
OKLCH	oklch(31.08% 0.145 281.3)
XYZ	xyz(4.6158, 2.5838, 17.3915)
Luminance	0.0258 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1B76 #67761B

analogous

#1B3976 #2A1B76 #571B76

triadic

#2A1B76 #762A1B #1B762A

tetradic

#2A1B76 #761B39 #67761B #1B7657

square

#2A1B76 #761B39 #67761B #1B7657

split-complementary

#2A1B76 #76571B #39761B

monochromatic

#090619 #181044 #2A1B76 #3C26A8 #533AD2

Accessibility & contrast

On white

13.84

#2A1B76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#2A1B76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1B76

13.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1B76	#FFFFFF	#000000	##FFFFFF
##2A1B76	1.00	13.84	1.52	13.84
#FFFFFF	13.84	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003079

Deuteranopia (green-blind)

#002974

Tritanopia (blue-blind)

#003547

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #2a1b76;
/* rgb */ color: rgb(42, 27, 118);
/* oklch */ color: oklch(31.1% 0.145 281.3);

Tailwind

colors: {
  custom: {
    50: '#6e599e',
    500: '#2a1b76',
    950: '#000000',
  },
}

SCSS

$custom: #2a1b76;
$custom-light: #6e599e;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1b76",
  "rgb": {
    "r": 42,
    "g": 27,
    "b": 118
  },
  "hsl": {
    "h": 249.89,
    "s": 62.759,
    "l": 28.431
  },
  "oklch": {
    "l": 0.31081,
    "c": 0.14529,
    "h": 281.3
  },
  "luminance": 0.02584
}

Semantic roles & 50–950 ramp

primary

#2A1B76

secondary

#99AA42

accent

#E642CB

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040E

muted

#7B797E

Preview Lab

Preview with #2A1B76

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

Preview Lab → · Contrast checker → · Palette generator →