#2B1B88#2B1B88

#2B1B88 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.1% C 0.168 H 278.7°. Best body text is #FFFFFF at 13.00:1 contrast (WCAG AA passes).

Color values

HEX	#2B1B88
RGB	rgb(43, 27, 136)
HSL	hsl(249, 67%, 32%)
HSV	hsv(249, 80%, 53%)
CMYK	cmyk(68.4%, 80.1%, 0%, 46.7%)
CIE-LAB	lab(20.34, 40.56, -57.44)
CIE-LCH	lch(20.34, 70.32, 305.23°)
OKLab	oklab(33.13% 0.0253 -0.1659)
OKLCH	oklch(33.13% 0.168 278.7)
XYZ	xyz(5.8307, 3.0745, 23.5740)
Luminance	0.0307 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1B88 #78881B

analogous

#1B4288 #2B1B88 #621B88

triadic

#2B1B88 #882B1B #1B882B

tetradic

#2B1B88 #881B42 #78881B #1B8862

square

#2B1B88 #881B42 #78881B #1B8862

split-complementary

#2B1B88 #88621B #42881B

monochromatic

#0B0722 #1B1155 #2B1B88 #3B25BB #5A44DA

Accessibility & contrast

On white

13.00

#2B1B88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#2B1B88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1B88

13.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1B88	#FFFFFF	#000000	##FFFFFF
##2B1B88	1.00	13.00	1.62	13.00
#FFFFFF	13.00	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	13.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358B

Deuteranopia (green-blind)

#002D86

Tritanopia (blue-blind)

#003C51

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #2b1b88;
/* rgb */ color: rgb(43, 27, 136);
/* oklch */ color: oklch(33.1% 0.168 278.7);

Tailwind

colors: {
  custom: {
    50: '#735bac',
    500: '#2b1b88',
    950: '#000000',
  },
}

SCSS

$custom: #2b1b88;
$custom-light: #735bac;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1b88",
  "rgb": {
    "r": 43,
    "g": 27,
    "b": 136
  },
  "hsl": {
    "h": 248.807,
    "s": 66.871,
    "l": 31.961
  },
  "oklch": {
    "l": 0.33125,
    "c": 0.16781,
    "h": 278.7
  },
  "luminance": 0.03075
}

Semantic roles & 50–950 ramp

primary

#2B1B88

secondary

#AABB44

accent

#EA3ED1

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #2B1B88

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

Preview Lab → · Contrast checker → · Palette generator →