#2F23A9#2F23A9

#2F23A9 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 38.1% C 0.200 H 275.2°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#2F23A9
RGB	rgb(47, 35, 169)
HSL	hsl(245, 66%, 40%)
HSV	hsv(245, 79%, 66%)
CMYK	cmyk(72.2%, 79.3%, 0%, 33.7%)
CIE-LAB	lab(25.77, 47.27, -68.74)
CIE-LCH	lch(25.77, 83.42, 304.51°)
OKLab	oklab(38.09% 0.0183 -0.1988)
OKLCH	oklch(38.09% 0.2 275.2)
XYZ	xyz(8.9324, 4.6701, 37.9591)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F23A9 #9DA923

analogous

#235AA9 #2F23A9 #7223A9

triadic

#2F23A9 #A92F23 #23A92F

tetradic

#2F23A9 #A9235A #9DA923 #23A972

square

#2F23A9 #A9235A #9DA923 #23A972

split-complementary

#2F23A9 #A97223 #5AA923

monochromatic

#130E44 #211976 #2F23A9 #4334D5 #7267DF

Accessibility & contrast

On white

10.86

#2F23A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#2F23A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F23A9

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F23A9	#FFFFFF	#000000	##FFFFFF
##2F23A9	1.00	10.86	1.93	10.86
#FFFFFF	10.86	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043AD

Deuteranopia (green-blind)

#0037A7

Tritanopia (blue-blind)

#004C66

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2f23a9;
/* rgb */ color: rgb(47, 35, 169);
/* oklch */ color: oklch(38.1% 0.200 275.2);

Tailwind

colors: {
  custom: {
    50: '#7b61c4',
    500: '#2f23a9',
    950: '#000000',
  },
}

SCSS

$custom: #2f23a9;
$custom-light: #7b61c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2f23a9",
  "rgb": {
    "r": 47,
    "g": 35,
    "b": 169
  },
  "hsl": {
    "h": 245.373,
    "s": 65.686,
    "l": 40
  },
  "oklch": {
    "l": 0.38088,
    "c": 0.1996,
    "h": 275.2
  },
  "luminance": 0.04671
}

Semantic roles & 50–950 ramp

primary

#2F23A9

secondary

#BCC563

accent

#E93FD9

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #2F23A9

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

Preview Lab → · Contrast checker → · Palette generator →