#2B1F88#2B1F88

#2B1F88 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.7% C 0.164 H 278.0°. Best body text is #FFFFFF at 12.69:1 contrast (WCAG AA passes).

Color values

HEX	#2B1F88
RGB	rgb(43, 31, 136)
HSL	hsl(247, 63%, 33%)
HSV	hsv(247, 77%, 53%)
CMYK	cmyk(68.4%, 77.2%, 0%, 46.7%)
CIE-LAB	lab(21.10, 38.40, -56.19)
CIE-LCH	lch(21.10, 68.06, 304.35°)
OKLab	oklab(33.66% 0.0229 -0.1623)
OKLCH	oklch(33.66% 0.164 278)
XYZ	xyz(5.9287, 3.2706, 23.6066)
Luminance	0.0327 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1F88 #7C881F

analogous

#1F4888 #2B1F88 #5F1F88

triadic

#2B1F88 #882B1F #1F882B

tetradic

#2B1F88 #881F48 #7C881F #1F885F

square

#2B1F88 #881F48 #7C881F #1F885F

split-complementary

#2B1F88 #885F1F #48881F

monochromatic

#0B0824 #1B1456 #2B1F88 #3B2ABA #5B4BD6

Accessibility & contrast

On white

12.69

#2B1F88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#2B1F88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1F88

12.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1F88	#FFFFFF	#000000	##FFFFFF
##2B1F88	1.00	12.69	1.65	12.69
#FFFFFF	12.69	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378B

Deuteranopia (green-blind)

#002E86

Tritanopia (blue-blind)

#003D52

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #2b1f88;
/* rgb */ color: rgb(43, 31, 136);
/* oklch */ color: oklch(33.7% 0.164 278.0);

Tailwind

colors: {
  custom: {
    50: '#725dac',
    500: '#2b1f88',
    950: '#000000',
  },
}

SCSS

$custom: #2b1f88;
$custom-light: #725dac;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1f88",
  "rgb": {
    "r": 43,
    "g": 31,
    "b": 136
  },
  "hsl": {
    "h": 246.857,
    "s": 62.874,
    "l": 32.745
  },
  "oklch": {
    "l": 0.33656,
    "c": 0.16391,
    "h": 278
  },
  "luminance": 0.03271
}

Semantic roles & 50–950 ramp

primary

#2B1F88

secondary

#ACB94A

accent

#E642D3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #2B1F88

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

Preview Lab → · Contrast checker → · Palette generator →