#2A23A6#2A23A6

#2A23A6 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 37.4% C 0.197 H 273.6°. Best body text is #FFFFFF at 11.11:1 contrast (WCAG AA passes).

Color values

HEX	#2A23A6
RGB	rgb(42, 35, 166)
HSL	hsl(243, 65%, 39%)
HSV	hsv(243, 79%, 65%)
CMYK	cmyk(74.7%, 78.9%, 0%, 34.9%)
CIE-LAB	lab(25.10, 45.90, -68.06)
CIE-LCH	lch(25.10, 82.09, 304.00°)
OKLab	oklab(37.43% 0.0125 -0.1969)
OKLCH	oklch(37.43% 0.197 273.6)
XYZ	xyz(8.4365, 4.4466, 36.4827)
Luminance	0.0445 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A23A6 #9FA623

analogous

#235EA6 #2A23A6 #6C23A6

triadic

#2A23A6 #A62A23 #23A62A

tetradic

#2A23A6 #A6235E #9FA623 #23A66C

square

#2A23A6 #A6235E #9FA623 #23A66C

split-complementary

#2A23A6 #A66C23 #5EA623

monochromatic

#100E41 #1D1873 #2A23A6 #3B32D4 #6B65DF

Accessibility & contrast

On white

11.11

#2A23A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#2A23A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A23A6

11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A23A6	#FFFFFF	#000000	##FFFFFF
##2A23A6	1.00	11.11	1.89	11.11
#FFFFFF	11.11	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.11	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: #2a23a6;
/* rgb */ color: rgb(42, 35, 166);
/* oklch */ color: oklch(37.4% 0.197 273.6);

Tailwind

colors: {
  custom: {
    50: '#7961c2',
    500: '#2a23a6',
    950: '#000000',
  },
}

SCSS

$custom: #2a23a6;
$custom-light: #7961c2;
$custom-dark: #000000;

JSON

{
  "hex": "#2a23a6",
  "rgb": {
    "r": 42,
    "g": 35,
    "b": 166
  },
  "hsl": {
    "h": 243.206,
    "s": 65.174,
    "l": 39.412
  },
  "oklch": {
    "l": 0.37427,
    "c": 0.19728,
    "h": 273.6
  },
  "luminance": 0.04447
}

Semantic roles & 50–950 ramp

primary

#2A23A6

secondary

#BFC461

accent

#E840DF

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #2A23A6

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

Preview Lab → · Contrast checker → · Palette generator →