#2B23A6#2B23A6

#2B23A6 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 37.5% C 0.197 H 274.0°. Best body text is #FFFFFF at 11.09:1 contrast (WCAG AA passes).

Color values

HEX	#2B23A6
RGB	rgb(43, 35, 166)
HSL	hsl(244, 65%, 39%)
HSV	hsv(244, 79%, 65%)
CMYK	cmyk(74.1%, 78.9%, 0%, 34.9%)
CIE-LAB	lab(25.16, 45.98, -67.95)
CIE-LCH	lch(25.16, 82.04, 304.09°)
OKLab	oklab(37.49% 0.0137 -0.1965)
OKLCH	oklch(37.49% 0.197 274)
XYZ	xyz(8.4779, 4.4680, 36.4846)
Luminance	0.0447 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B23A6 #9EA623

analogous

#235DA6 #2B23A6 #6D23A6

triadic

#2B23A6 #A62B23 #23A62B

tetradic

#2B23A6 #A6235D #9EA623 #23A66D

square

#2B23A6 #A6235D #9EA623 #23A66D

split-complementary

#2B23A6 #A66D23 #5DA623

monochromatic

#110E41 #1E1873 #2B23A6 #3C32D4 #6C65DF

Accessibility & contrast

On white

11.09

#2B23A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#2B23A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B23A6

11.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B23A6	#FFFFFF	#000000	##FFFFFF
##2B23A6	1.00	11.09	1.89	11.09
#FFFFFF	11.09	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042AA

Deuteranopia (green-blind)

#0035A4

Tritanopia (blue-blind)

#004B64

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #2b23a6;
/* rgb */ color: rgb(43, 35, 166);
/* oklch */ color: oklch(37.5% 0.197 274.0);

Tailwind

colors: {
  custom: {
    50: '#7961c2',
    500: '#2b23a6',
    950: '#000000',
  },
}

SCSS

$custom: #2b23a6;
$custom-light: #7961c2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b23a6",
  "rgb": {
    "r": 43,
    "g": 35,
    "b": 166
  },
  "hsl": {
    "h": 243.664,
    "s": 65.174,
    "l": 39.412
  },
  "oklch": {
    "l": 0.3749,
    "c": 0.19703,
    "h": 274
  },
  "luminance": 0.04469
}

Semantic roles & 50–950 ramp

primary

#2B23A6

secondary

#BEC461

accent

#E840DE

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #2B23A6

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

Preview Lab → · Contrast checker → · Palette generator →