#2F3FAC#2F3FAC

#2F3FAC is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.7% C 0.174 H 270.6°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#2F3FAC
RGB	rgb(47, 63, 172)
HSL	hsl(232, 57%, 43%)
HSV	hsv(232, 73%, 67%)
CMYK	cmyk(72.7%, 63.4%, 0%, 32.5%)
CIE-LAB	lab(32.12, 31.70, -60.10)
CIE-LCH	lch(32.12, 67.95, 297.81°)
OKLab	oklab(42.74% 0.0019 -0.1736)
OKLCH	oklch(42.74% 0.174 270.6)
XYZ	xyz(10.3937, 7.1368, 39.8515)
Luminance	0.0714 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3FAC #AC9C2F

analogous

#2F7DAC #2F3FAC #5D2FAC

triadic

#2F3FAC #AC2F3F #3FAC2F

tetradic

#2F3FAC #AC2F7D #AC9C2F #2FAC5D

square

#2F3FAC #AC2F7D #AC9C2F #2FAC5D

split-complementary

#2F3FAC #AC5D2F #7DAC2F

monochromatic

#151C4C #222D7C #2F3FAC #4B5BCE #7B87DB

Accessibility & contrast

On white

8.65

#2F3FAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#2F3FAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3FAC

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3FAC	#FFFFFF	#000000	##FFFFFF
##2F3FAC	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B0

Deuteranopia (green-blind)

#0046AA

Tritanopia (blue-blind)

#005B6F

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #2f3fac;
/* rgb */ color: rgb(47, 63, 172);
/* oklch */ color: oklch(42.7% 0.174 270.6);

Tailwind

colors: {
  custom: {
    50: '#7974c6',
    500: '#2f3fac',
    950: '#000000',
  },
}

SCSS

$custom: #2f3fac;
$custom-light: #7974c6;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3fac",
  "rgb": {
    "r": 47,
    "g": 63,
    "b": 172
  },
  "hsl": {
    "h": 232.32,
    "s": 57.078,
    "l": 42.941
  },
  "oklch": {
    "l": 0.42735,
    "c": 0.17362,
    "h": 270.6
  },
  "luminance": 0.07138
}

Semantic roles & 50–950 ramp

primary

#2F3FAC

secondary

#C3B974

accent

#CD47E0

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2F3FAC

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

Preview Lab → · Contrast checker → · Palette generator →