#2F23A5#2F23A5

#2F23A5 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 37.6% C 0.195 H 275.7°. Best body text is #FFFFFF at 11.03:1 contrast (WCAG AA passes).

Color values

HEX	#2F23A5
RGB	rgb(47, 35, 165)
HSL	hsl(246, 65%, 39%)
HSV	hsv(246, 79%, 65%)
CMYK	cmyk(71.5%, 78.8%, 0%, 35.3%)
CIE-LAB	lab(25.33, 46.01, -67.06)
CIE-LCH	lch(25.33, 81.32, 304.45°)
OKLab	oklab(37.65% 0.0193 -0.1939)
OKLCH	oklch(37.65% 0.195 275.7)
XYZ	xyz(8.5626, 4.5222, 36.0116)
Luminance	0.0452 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F23A5 #99A523

analogous

#2358A5 #2F23A5 #7023A5

triadic

#2F23A5 #A52F23 #23A52F

tetradic

#2F23A5 #A52358 #99A523 #23A570

square

#2F23A5 #A52358 #99A523 #23A570

split-complementary

#2F23A5 #A57023 #58A523

monochromatic

#120E40 #211873 #2F23A5 #4132D3 #6F64DE

Accessibility & contrast

On white

11.03

#2F23A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#2F23A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F23A5

11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F23A5	#FFFFFF	#000000	##FFFFFF
##2F23A5	1.00	11.03	1.90	11.03
#FFFFFF	11.03	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042A9

Deuteranopia (green-blind)

#0036A3

Tritanopia (blue-blind)

#004A64

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #2f23a5;
/* rgb */ color: rgb(47, 35, 165);
/* oklch */ color: oklch(37.6% 0.195 275.7);

Tailwind

colors: {
  custom: {
    50: '#7a61c1',
    500: '#2f23a5',
    950: '#000000',
  },
}

SCSS

$custom: #2f23a5;
$custom-light: #7a61c1;
$custom-dark: #000000;

JSON

{
  "hex": "#2f23a5",
  "rgb": {
    "r": 47,
    "g": 35,
    "b": 165
  },
  "hsl": {
    "h": 245.538,
    "s": 65,
    "l": 39.216
  },
  "oklch": {
    "l": 0.37646,
    "c": 0.19482,
    "h": 275.7
  },
  "luminance": 0.04523
}

Semantic roles & 50–950 ramp

primary

#2F23A5

secondary

#BAC460

accent

#E840D8

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0512

muted

#7C7981

Preview Lab

Preview with #2F23A5

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

Preview Lab → · Contrast checker → · Palette generator →