#2B1D74#2B1D74

#2B1D74 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.3% C 0.140 H 281.9°. Best body text is #FFFFFF at 13.72:1 contrast (WCAG AA passes).

Color values

HEX	#2B1D74
RGB	rgb(43, 29, 116)
HSL	hsl(250, 60%, 28%)
HSV	hsv(250, 75%, 45%)
CMYK	cmyk(62.9%, 75%, 0%, 54.5%)
CIE-LAB	lab(18.60, 32.92, -47.60)
CIE-LCH	lch(18.60, 57.87, 304.66°)
OKLab	oklab(31.26% 0.029 -0.1372)
OKLCH	oklch(31.26% 0.14 281.9)
XYZ	xyz(4.5870, 2.6530, 16.7900)
Luminance	0.0265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1D74 #66741D

analogous

#1D3A74 #2B1D74 #561D74

triadic

#2B1D74 #742B1D #1D742B

tetradic

#2B1D74 #741D3A #66741D #1D7456

square

#2B1D74 #741D3A #66741D #1D7456

split-complementary

#2B1D74 #74561D #3A741D

monochromatic

#090618 #191143 #2B1D74 #3D29A5 #543DCE

Accessibility & contrast

On white

13.72

#2B1D74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#2B1D74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1D74

13.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1D74	#FFFFFF	#000000	##FFFFFF
##2B1D74	1.00	13.72	1.53	13.72
#FFFFFF	13.72	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003077

Deuteranopia (green-blind)

#002A72

Tritanopia (blue-blind)

#003546

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #2b1d74;
/* rgb */ color: rgb(43, 29, 116);
/* oklch */ color: oklch(31.3% 0.140 281.9);

Tailwind

colors: {
  custom: {
    50: '#6e5b9d',
    500: '#2b1d74',
    950: '#000000',
  },
}

SCSS

$custom: #2b1d74;
$custom-light: #6e5b9d;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1d74",
  "rgb": {
    "r": 43,
    "g": 29,
    "b": 116
  },
  "hsl": {
    "h": 249.655,
    "s": 60,
    "l": 28.431
  },
  "oklch": {
    "l": 0.31257,
    "c": 0.14024,
    "h": 281.9
  },
  "luminance": 0.02653
}

Semantic roles & 50–950 ramp

primary

#2B1D74

secondary

#98A845

accent

#E345CA

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040E

muted

#7B797E

Preview Lab

Preview with #2B1D74

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

Preview Lab → · Contrast checker → · Palette generator →