#2F23A8#2F23A8

#2F23A8 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 38.0% C 0.198 H 275.4°. Best body text is #FFFFFF at 10.90:1 contrast (WCAG AA passes).

Color values

HEX	#2F23A8
RGB	rgb(47, 35, 168)
HSL	hsl(245, 66%, 40%)
HSV	hsv(245, 79%, 66%)
CMYK	cmyk(72%, 79.2%, 0%, 34.1%)
CIE-LAB	lab(25.66, 46.95, -68.32)
CIE-LCH	lch(25.66, 82.90, 304.50°)
OKLab	oklab(37.98% 0.0185 -0.1975)
OKLCH	oklch(37.98% 0.198 275.4)
XYZ	xyz(8.8389, 4.6327, 37.4666)
Luminance	0.0463 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F23A8 #9CA823

analogous

#2359A8 #2F23A8 #7223A8

triadic

#2F23A8 #A82F23 #23A82F

tetradic

#2F23A8 #A82359 #9CA823 #23A872

square

#2F23A8 #A82359 #9CA823 #23A872

split-complementary

#2F23A8 #A87223 #59A823

monochromatic

#130E43 #211875 #2F23A8 #4234D5 #7166DF

Accessibility & contrast

On white

10.90

#2F23A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#2F23A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F23A8

10.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F23A8	#FFFFFF	#000000	##FFFFFF
##2F23A8	1.00	10.90	1.93	10.90
#FFFFFF	10.90	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043AC

Deuteranopia (green-blind)

#0037A6

Tritanopia (blue-blind)

#004B65

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2f23a8;
/* rgb */ color: rgb(47, 35, 168);
/* oklch */ color: oklch(38.0% 0.198 275.4);

Tailwind

colors: {
  custom: {
    50: '#7b61c3',
    500: '#2f23a8',
    950: '#000000',
  },
}

SCSS

$custom: #2f23a8;
$custom-light: #7b61c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2f23a8",
  "rgb": {
    "r": 47,
    "g": 35,
    "b": 168
  },
  "hsl": {
    "h": 245.414,
    "s": 65.517,
    "l": 39.804
  },
  "oklch": {
    "l": 0.37977,
    "c": 0.1984,
    "h": 275.4
  },
  "luminance": 0.04634
}

Semantic roles & 50–950 ramp

primary

#2F23A8

secondary

#BCC562

accent

#E83FD9

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #2F23A8

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

Preview Lab → · Contrast checker → · Palette generator →