#2F3FBC#2F3FBC

#2F3FBC is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.2% C 0.195 H 270.3°. Best body text is #FFFFFF at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#2F3FBC
RGB	rgb(47, 63, 188)
HSL	hsl(233, 60%, 46%)
HSV	hsv(233, 75%, 74%)
CMYK	cmyk(75%, 66.5%, 0%, 26.3%)
CIE-LAB	lab(33.54, 37.47, -67.26)
CIE-LCH	lch(33.54, 76.99, 299.12°)
OKLab	oklab(44.21% 0.0009 -0.1946)
OKLCH	oklch(44.21% 0.195 270.3)
XYZ	xyz(12.0238, 7.7889, 48.4369)
Luminance	0.0779 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3FBC #BCAC2F

analogous

#2F85BC #2F3FBC #652FBC

triadic

#2F3FBC #BC2F3F #3FBC2F

tetradic

#2F3FBC #BC2F85 #BCAC2F #2FBC65

square

#2F3FBC #BC2F85 #BCAC2F #2FBC65

split-complementary

#2F3FBC #BC652F #85BC2F

monochromatic

#171E5A #232F8B #2F3FBC #5463D4 #858FE0

Accessibility & contrast

On white

8.21

#2F3FBC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#2F3FBC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3FBC

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3FBC	#FFFFFF	#000000	##FFFFFF
##2F3FBC	1.00	8.21	2.56	8.21
#FFFFFF	8.21	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C0

Deuteranopia (green-blind)

#0048BA

Tritanopia (blue-blind)

#006178

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #2f3fbc;
/* rgb */ color: rgb(47, 63, 188);
/* oklch */ color: oklch(44.2% 0.195 270.3);

Tailwind

colors: {
  custom: {
    50: '#7d74d1',
    500: '#2f3fbc',
    950: '#000000',
  },
}

SCSS

$custom: #2f3fbc;
$custom-light: #7d74d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3fbc",
  "rgb": {
    "r": 47,
    "g": 63,
    "b": 188
  },
  "hsl": {
    "h": 233.191,
    "s": 60,
    "l": 46.078
  },
  "oklch": {
    "l": 0.44214,
    "c": 0.19458,
    "h": 270.3
  },
  "luminance": 0.0779
}

Semantic roles & 50–950 ramp

primary

#2F3FBC

secondary

#CAC17D

accent

#D145E3

background

#F8F7FD

surface

#EFEDFA

border

#CAC8D3

text

#0B0814

muted

#7C7B83

Preview Lab

Preview with #2F3FBC

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

Preview Lab → · Contrast checker → · Palette generator →