#2B23A3#2B23A3

#2B23A3 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 37.2% C 0.193 H 274.3°. Best body text is #FFFFFF at 11.22:1 contrast (WCAG AA passes).

Color values

HEX	#2B23A3
RGB	rgb(43, 35, 163)
HSL	hsl(244, 65%, 39%)
HSV	hsv(244, 79%, 64%)
CMYK	cmyk(73.6%, 78.5%, 0%, 36.1%)
CIE-LAB	lab(24.83, 45.02, -66.68)
CIE-LCH	lch(24.83, 80.46, 304.02°)
OKLab	oklab(37.16% 0.0144 -0.1929)
OKLCH	oklch(37.16% 0.193 274.3)
XYZ	xyz(8.2060, 4.3592, 35.0522)
Luminance	0.0436 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B23A3 #9BA323

analogous

#235BA3 #2B23A3 #6B23A3

triadic

#2B23A3 #A32B23 #23A32B

tetradic

#2B23A3 #A3235B #9BA323 #23A36B

square

#2B23A3 #A3235B #9BA323 #23A36B

split-complementary

#2B23A3 #A36B23 #5BA323

monochromatic

#100D3E #1E1871 #2B23A3 #3B31D3 #6B63DD

Accessibility & contrast

On white

11.22

#2B23A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#2B23A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B23A3

11.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B23A3	#FFFFFF	#000000	##FFFFFF
##2B23A3	1.00	11.22	1.87	11.22
#FFFFFF	11.22	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041A7

Deuteranopia (green-blind)

#0035A1

Tritanopia (blue-blind)

#004A62

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2b23a3;
/* rgb */ color: rgb(43, 35, 163);
/* oklch */ color: oklch(37.2% 0.193 274.3);

Tailwind

colors: {
  custom: {
    50: '#7861c0',
    500: '#2b23a3',
    950: '#000000',
  },
}

SCSS

$custom: #2b23a3;
$custom-light: #7861c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2b23a3",
  "rgb": {
    "r": 43,
    "g": 35,
    "b": 163
  },
  "hsl": {
    "h": 243.75,
    "s": 64.646,
    "l": 38.824
  },
  "oklch": {
    "l": 0.37155,
    "c": 0.19342,
    "h": 274.3
  },
  "luminance": 0.0436
}

Semantic roles & 50–950 ramp

primary

#2B23A3

secondary

#BCC35F

accent

#E840DD

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #2B23A3

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

Preview Lab → · Contrast checker → · Palette generator →