#2A1F72#2A1F72

#2A1F72 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.3% C 0.135 H 281.2°. Best body text is #FFFFFF at 13.66:1 contrast (WCAG AA passes).

Color values

HEX	#2A1F72
RGB	rgb(42, 31, 114)
HSL	hsl(248, 57%, 28%)
HSV	hsv(248, 73%, 45%)
CMYK	cmyk(63.2%, 72.8%, 0%, 55.3%)
CIE-LAB	lab(18.74, 30.87, -46.07)
CIE-LCH	lch(18.74, 55.46, 303.83°)
OKLab	oklab(31.28% 0.0263 -0.1328)
OKLCH	oklch(31.28% 0.135 281.2)
XYZ	xyz(4.4811, 2.6868, 16.1988)
Luminance	0.0269 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A1F72 #67721F

analogous

#1F3D72 #2A1F72 #531F72

triadic

#2A1F72 #722A1F #1F722A

tetradic

#2A1F72 #721F3D #67721F #1F7253

square

#2A1F72 #721F3D #67721F #1F7253

split-complementary

#2A1F72 #72531F #3D721F

monochromatic

#090718 #181242 #2A1F72 #3C2CA2 #5340CB

Accessibility & contrast

On white

13.66

#2A1F72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#2A1F72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A1F72

13.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A1F72	#FFFFFF	#000000	##FFFFFF
##2A1F72	1.00	13.66	1.54	13.66
#FFFFFF	13.66	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003075

Deuteranopia (green-blind)

#002B70

Tritanopia (blue-blind)

#003546

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #2a1f72;
/* rgb */ color: rgb(42, 31, 114);
/* oklch */ color: oklch(31.3% 0.135 281.2);

Tailwind

colors: {
  custom: {
    50: '#6d5c9b',
    500: '#2a1f72',
    950: '#000000',
  },
}

SCSS

$custom: #2a1f72;
$custom-light: #6d5c9b;
$custom-dark: #000000;

JSON

{
  "hex": "#2a1f72",
  "rgb": {
    "r": 42,
    "g": 31,
    "b": 114
  },
  "hsl": {
    "h": 247.952,
    "s": 57.241,
    "l": 28.431
  },
  "oklch": {
    "l": 0.31278,
    "c": 0.13534,
    "h": 281.2
  },
  "luminance": 0.02687
}

Semantic roles & 50–950 ramp

primary

#2A1F72

secondary

#99A647

accent

#E047CC

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08040E

muted

#7A797E

Preview Lab

Preview with #2A1F72

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

Preview Lab → · Contrast checker → · Palette generator →