#2B23BC#2B23BC

#2B23BC is a dark, highly saturated blue. Relative luminance 0.053; OKLCH L 40.0% C 0.223 H 272.2°. Best body text is #FFFFFF at 10.15:1 contrast (WCAG AA passes).

Color values

HEX	#2B23BC
RGB	rgb(43, 35, 188)
HSL	hsl(243, 69%, 44%)
HSV	hsv(243, 81%, 74%)
CMYK	cmyk(77.1%, 81.4%, 0%, 26.3%)
CIE-LAB	lab(27.70, 52.86, -76.91)
CIE-LCH	lch(27.70, 93.33, 304.50°)
OKLab	oklab(39.99% 0.0085 -0.2226)
OKLCH	oklch(39.99% 0.223 272.2)
XYZ	xyz(10.6713, 5.3453, 48.0365)
Luminance	0.0535 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B23BC #B4BC23

analogous

#2367BC #2B23BC #7723BC

triadic

#2B23BC #BC2B23 #23BC2B

tetradic

#2B23BC #BC2367 #B4BC23 #23BC77

square

#2B23BC #BC2367 #B4BC23 #23BC77

split-complementary

#2B23BC #BC7723 #67BC23

monochromatic

#131055 #1F1988 #2B23BC #4941DC #7A74E5

Accessibility & contrast

On white

10.15

#2B23BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#2B23BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B23BC

10.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B23BC	#FFFFFF	#000000	##FFFFFF
##2B23BC	1.00	10.15	2.07	10.15
#FFFFFF	10.15	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049C0

Deuteranopia (green-blind)

#003AB9

Tritanopia (blue-blind)

#005471

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2b23bc;
/* rgb */ color: rgb(43, 35, 188);
/* oklch */ color: oklch(40.0% 0.223 272.2);

Tailwind

colors: {
  custom: {
    50: '#7e62d2',
    500: '#2b23bc',
    950: '#000000',
  },
}

SCSS

$custom: #2b23bc;
$custom-light: #7e62d2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b23bc",
  "rgb": {
    "r": 43,
    "g": 35,
    "b": 188
  },
  "hsl": {
    "h": 243.137,
    "s": 68.61,
    "l": 43.725
  },
  "oklch": {
    "l": 0.39993,
    "c": 0.22272,
    "h": 272.2
  },
  "luminance": 0.05346
}

Semantic roles & 50–950 ramp

primary

#2B23BC

secondary

#C7CC6F

accent

#EB3CE2

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0514

muted

#7D7A83

Preview Lab

Preview with #2B23BC

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

Preview Lab → · Contrast checker → · Palette generator →