#2F23A1#2F23A1

#2F23A1 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 37.2% C 0.190 H 276.1°. Best body text is #FFFFFF at 11.19:1 contrast (WCAG AA passes).

Color values

HEX	#2F23A1
RGB	rgb(47, 35, 161)
HSL	hsl(246, 64%, 38%)
HSV	hsv(246, 78%, 63%)
CMYK	cmyk(70.8%, 78.3%, 0%, 36.9%)
CIE-LAB	lab(24.89, 44.74, -65.36)
CIE-LCH	lch(24.89, 79.20, 304.39°)
OKLab	oklab(37.21% 0.0202 -0.1889)
OKLCH	oklch(37.21% 0.19 276.1)
XYZ	xyz(8.2042, 4.3788, 34.1241)
Luminance	0.0438 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F23A1 #95A123

analogous

#2356A1 #2F23A1 #6E23A1

triadic

#2F23A1 #A12F23 #23A12F

tetradic

#2F23A1 #A12356 #95A123 #23A16E

square

#2F23A1 #A12356 #95A123 #23A16E

split-complementary

#2F23A1 #A16E23 #56A123

monochromatic

#120D3C #20186F #2F23A1 #3F2FD2 #6D62DD

Accessibility & contrast

On white

11.19

#2F23A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#2F23A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F23A1

11.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F23A1	#FFFFFF	#000000	##FFFFFF
##2F23A1	1.00	11.19	1.88	11.19
#FFFFFF	11.19	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0040A5

Deuteranopia (green-blind)

#00359F

Tritanopia (blue-blind)

#004961

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2f23a1;
/* rgb */ color: rgb(47, 35, 161);
/* oklch */ color: oklch(37.2% 0.190 276.1);

Tailwind

colors: {
  custom: {
    50: '#7961be',
    500: '#2f23a1',
    950: '#000000',
  },
}

SCSS

$custom: #2f23a1;
$custom-light: #7961be;
$custom-dark: #000000;

JSON

{
  "hex": "#2f23a1",
  "rgb": {
    "r": 47,
    "g": 35,
    "b": 161
  },
  "hsl": {
    "h": 245.714,
    "s": 64.286,
    "l": 38.431
  },
  "oklch": {
    "l": 0.37207,
    "c": 0.19001,
    "h": 276.1
  },
  "luminance": 0.0438
}

Semantic roles & 50–950 ramp

primary

#2F23A1

secondary

#B8C25E

accent

#E741D7

background

#F8F5FB

surface

#EFEAF7

border

#CAC6D0

text

#0B0512

muted

#7C7981

Preview Lab

Preview with #2F23A1

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

Preview Lab → · Contrast checker → · Palette generator →