#2B23B0#2B23B0

#2B23B0 is a dark, highly saturated blue. Relative luminance 0.049; OKLCH L 38.6% C 0.209 H 273.1°. Best body text is #FFFFFF at 10.66:1 contrast (WCAG AA passes).

Color values

HEX	#2B23B0
RGB	rgb(43, 35, 176)
HSL	hsl(243, 67%, 41%)
HSV	hsv(243, 80%, 69%)
CMYK	cmyk(75.6%, 80.1%, 0%, 31%)
CIE-LAB	lab(26.30, 49.15, -72.08)
CIE-LCH	lch(26.30, 87.24, 304.29°)
OKLab	oklab(38.62% 0.0114 -0.2085)
OKLCH	oklch(38.62% 0.209 273.1)
XYZ	xyz(9.4311, 4.8493, 41.5048)
Luminance	0.0485 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B23B0 #A8B023

analogous

#2362B0 #2B23B0 #7223B0

triadic

#2B23B0 #B02B23 #23B02B

tetradic

#2B23B0 #B02362 #A8B023 #23B072

square

#2B23B0 #B02362 #A8B023 #23B072

split-complementary

#2B23B0 #B07223 #62B023

monochromatic

#120F4A #1F197D #2B23B0 #4239D8 #726CE2

Accessibility & contrast

On white

10.66

#2B23B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#2B23B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B23B0

10.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B23B0	#FFFFFF	#000000	##FFFFFF
##2B23B0	1.00	10.66	1.97	10.66
#FFFFFF	10.66	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045B4

Deuteranopia (green-blind)

#0037AE

Tritanopia (blue-blind)

#004F6A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2b23b0;
/* rgb */ color: rgb(43, 35, 176);
/* oklch */ color: oklch(38.6% 0.209 273.1);

Tailwind

colors: {
  custom: {
    50: '#7b62c9',
    500: '#2b23b0',
    950: '#000000',
  },
}

SCSS

$custom: #2b23b0;
$custom-light: #7b62c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b23b0",
  "rgb": {
    "r": 43,
    "g": 35,
    "b": 176
  },
  "hsl": {
    "h": 243.404,
    "s": 66.825,
    "l": 41.373
  },
  "oklch": {
    "l": 0.38618,
    "c": 0.20886,
    "h": 273.1
  },
  "luminance": 0.0485
}

Semantic roles & 50–950 ramp

primary

#2B23B0

secondary

#C2C867

accent

#EA3EE0

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #2B23B0

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

Preview Lab → · Contrast checker → · Palette generator →