#2F3DAD#2F3DAD

#2F3DAD is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.5% C 0.177 H 271.0°. Best body text is #FFFFFF at 8.78:1 contrast (WCAG AA passes).

Color values

HEX	#2F3DAD
RGB	rgb(47, 61, 173)
HSL	hsl(233, 57%, 43%)
HSV	hsv(233, 73%, 68%)
CMYK	cmyk(72.8%, 64.7%, 0%, 32.2%)
CIE-LAB	lab(31.71, 33.36, -61.36)
CIE-LCH	lch(31.71, 69.84, 298.53°)
OKLab	oklab(42.46% 0.0032 -0.1773)
OKLCH	oklch(42.46% 0.177 271)
XYZ	xyz(10.3813, 6.9579, 40.3230)
Luminance	0.0696 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.22

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3DAD #AD9F2F

analogous

#2F7CAD #2F3DAD #602FAD

triadic

#2F3DAD #AD2F3D #3DAD2F

tetradic

#2F3DAD #AD2F7C #AD9F2F #2FAD60

square

#2F3DAD #AD2F7C #AD9F2F #2FAD60

split-complementary

#2F3DAD #AD602F #7CAD2F

monochromatic

#151B4D #222C7D #2F3DAD #4B5ACE #7B86DB

Accessibility & contrast

On white

8.78

#2F3DAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#2F3DAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3DAD

8.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3DAD	#FFFFFF	#000000	##FFFFFF
##2F3DAD	1.00	8.78	2.39	8.78
#FFFFFF	8.78	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B1

Deuteranopia (green-blind)

#0045AB

Tritanopia (blue-blind)

#005A6F

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2f3dad;
/* rgb */ color: rgb(47, 61, 173);
/* oklch */ color: oklch(42.5% 0.177 271.0);

Tailwind

colors: {
  custom: {
    50: '#7a72c6',
    500: '#2f3dad',
    950: '#000000',
  },
}

SCSS

$custom: #2f3dad;
$custom-light: #7a72c6;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3dad",
  "rgb": {
    "r": 47,
    "g": 61,
    "b": 173
  },
  "hsl": {
    "h": 233.333,
    "s": 57.273,
    "l": 43.137
  },
  "oklch": {
    "l": 0.42464,
    "c": 0.17736,
    "h": 271
  },
  "luminance": 0.06959
}

Semantic roles & 50–950 ramp

primary

#2F3DAD

secondary

#C4BB74

accent

#CF47E1

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2F3DAD

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

Preview Lab → · Contrast checker → · Palette generator →