#2F3CB5#2F3CB5

#2F3CB5 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.0% C 0.189 H 271.0°. Best body text is #FFFFFF at 8.63:1 contrast (WCAG AA passes).

Color values

HEX	#2F3CB5
RGB	rgb(47, 60, 181)
HSL	hsl(234, 59%, 45%)
HSV	hsv(234, 74%, 71%)
CMYK	cmyk(74%, 66.9%, 0%, 29%)
CIE-LAB	lab(32.19, 36.86, -65.33)
CIE-LCH	lch(32.19, 75.01, 299.43°)
OKLab	oklab(43.04% 0.0033 -0.1889)
OKLCH	oklch(43.04% 0.189 271)
XYZ	xyz(11.1258, 7.1711, 44.5049)
Luminance	0.0717 (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

#2F3CB5 #B5A82F

analogous

#2F7FB5 #2F3CB5 #652FB5

triadic

#2F3CB5 #B52F3C #3CB52F

tetradic

#2F3CB5 #B52F7F #B5A82F #2FB565

square

#2F3CB5 #B52F7F #B5A82F #2FB565

split-complementary

#2F3CB5 #B5652F #7FB52F

monochromatic

#161C54 #222C84 #2F3CB5 #505CD1 #8089DE

Accessibility & contrast

On white

8.63

#2F3CB5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#2F3CB5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3CB5

8.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3CB5	#FFFFFF	#000000	##FFFFFF
##2F3CB5	1.00	8.63	2.43	8.63
#FFFFFF	8.63	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B9

Deuteranopia (green-blind)

#0045B3

Tritanopia (blue-blind)

#005C73

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #2f3cb5;
/* rgb */ color: rgb(47, 60, 181);
/* oklch */ color: oklch(43.0% 0.189 271.0);

Tailwind

colors: {
  custom: {
    50: '#7c72cc',
    500: '#2f3cb5',
    950: '#000000',
  },
}

SCSS

$custom: #2f3cb5;
$custom-light: #7c72cc;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3cb5",
  "rgb": {
    "r": 47,
    "g": 60,
    "b": 181
  },
  "hsl": {
    "h": 234.179,
    "s": 58.772,
    "l": 44.706
  },
  "oklch": {
    "l": 0.43037,
    "c": 0.18898,
    "h": 271
  },
  "luminance": 0.07172
}

Semantic roles & 50–950 ramp

primary

#2F3CB5

secondary

#C7BF79

accent

#D346E2

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #2F3CB5

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

Preview Lab → · Contrast checker → · Palette generator →