#2B1F8E#2B1F8E

#2B1F8E is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.3% C 0.171 H 277.2°. Best body text is #FFFFFF at 12.43:1 contrast (WCAG AA passes).

Color values

HEX	#2B1F8E
RGB	rgb(43, 31, 142)
HSL	hsl(246, 64%, 34%)
HSV	hsv(246, 78%, 56%)
CMYK	cmyk(69.7%, 78.2%, 0%, 44.3%)
CIE-LAB	lab(21.75, 40.36, -58.86)
CIE-LCH	lch(21.75, 71.37, 304.44°)
OKLab	oklab(34.31% 0.0215 -0.1701)
OKLCH	oklch(34.31% 0.171 277.2)
XYZ	xyz(6.3671, 3.4460, 25.9155)
Luminance	0.0345 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1F8E #828E1F

analogous

#1F4B8E #2B1F8E #631F8E

triadic

#2B1F8E #8E2B1F #1F8E2B

tetradic

#2B1F8E #8E1F4B #828E1F #1F8E63

square

#2B1F8E #8E1F4B #828E1F #1F8E63

split-complementary

#2B1F8E #8E631F #4B8E1F

monochromatic

#0D092A #1C145C #2B1F8E #3A2AC0 #5E4FD9

Accessibility & contrast

On white

12.43

#2B1F8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#2B1F8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1F8E

12.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1F8E	#FFFFFF	#000000	##FFFFFF
##2B1F8E	1.00	12.43	1.69	12.43
#FFFFFF	12.43	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003991

Deuteranopia (green-blind)

#002F8C

Tritanopia (blue-blind)

#004055

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #2b1f8e;
/* rgb */ color: rgb(43, 31, 142);
/* oklch */ color: oklch(34.3% 0.171 277.2);

Tailwind

colors: {
  custom: {
    50: '#745db0',
    500: '#2b1f8e',
    950: '#000000',
  },
}

SCSS

$custom: #2b1f8e;
$custom-light: #745db0;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1f8e",
  "rgb": {
    "r": 43,
    "g": 31,
    "b": 142
  },
  "hsl": {
    "h": 246.486,
    "s": 64.162,
    "l": 33.922
  },
  "oklch": {
    "l": 0.34309,
    "c": 0.17144,
    "h": 277.2
  },
  "luminance": 0.03447
}

Semantic roles & 50–950 ramp

primary

#2B1F8E

secondary

#B0BB4D

accent

#E741D5

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #2B1F8E

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

Preview Lab → · Contrast checker → · Palette generator →