#2A23A3#2A23A3

#2A23A3 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 37.1% C 0.194 H 273.9°. Best body text is #FFFFFF at 11.24:1 contrast (WCAG AA passes).

Color values

HEX	#2A23A3
RGB	rgb(42, 35, 163)
HSL	hsl(243, 65%, 39%)
HSV	hsv(243, 79%, 64%)
CMYK	cmyk(74.2%, 78.5%, 0%, 36.1%)
CIE-LAB	lab(24.76, 44.93, -66.80)
CIE-LCH	lch(24.76, 80.50, 303.93°)
OKLab	oklab(37.09% 0.0132 -0.1932)
OKLCH	oklch(37.09% 0.194 273.9)
XYZ	xyz(8.1645, 4.3378, 35.0502)
Luminance	0.0434 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A23A3 #9CA323

analogous

#235CA3 #2A23A3 #6A23A3

triadic

#2A23A3 #A32A23 #23A32A

tetradic

#2A23A3 #A3235C #9CA323 #23A36A

square

#2A23A3 #A3235C #9CA323 #23A36A

split-complementary

#2A23A3 #A36A23 #5CA323

monochromatic

#100D3E #1D1871 #2A23A3 #3931D3 #6A63DD

Accessibility & contrast

On white

11.24

#2A23A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#2A23A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A23A3

11.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A23A3	#FFFFFF	#000000	##FFFFFF
##2A23A3	1.00	11.24	1.87	11.24
#FFFFFF	11.24	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.24	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: #2a23a3;
/* rgb */ color: rgb(42, 35, 163);
/* oklch */ color: oklch(37.1% 0.194 273.9);

Tailwind

colors: {
  custom: {
    50: '#7861c0',
    500: '#2a23a3',
    950: '#000000',
  },
}

SCSS

$custom: #2a23a3;
$custom-light: #7861c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2a23a3",
  "rgb": {
    "r": 42,
    "g": 35,
    "b": 163
  },
  "hsl": {
    "h": 243.281,
    "s": 64.646,
    "l": 38.824
  },
  "oklch": {
    "l": 0.37091,
    "c": 0.19368,
    "h": 273.9
  },
  "luminance": 0.04339
}

Semantic roles & 50–950 ramp

primary

#2A23A3

secondary

#BDC35F

accent

#E840DE

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #2A23A3

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

Preview Lab → · Contrast checker → · Palette generator →