#2F3CB7#2F3CB7

#2F3CB7 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.2% C 0.192 H 270.9°. Best body text is #FFFFFF at 8.57:1 contrast (WCAG AA passes).

Color values

HEX	#2F3CB7
RGB	rgb(47, 60, 183)
HSL	hsl(234, 59%, 45%)
HSV	hsv(234, 74%, 72%)
CMYK	cmyk(74.3%, 67.2%, 0%, 28.2%)
CIE-LAB	lab(32.38, 37.57, -66.22)
CIE-LCH	lch(32.38, 76.13, 299.57°)
OKLab	oklab(43.23% 0.0031 -0.1915)
OKLCH	oklch(43.23% 0.192 270.9)
XYZ	xyz(11.3325, 7.2538, 45.5934)
Luminance	0.0726 (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

#2F3CB7 #B7AA2F

analogous

#2F80B7 #2F3CB7 #662FB7

triadic

#2F3CB7 #B72F3C #3CB72F

tetradic

#2F3CB7 #B72F80 #B7AA2F #2FB766

square

#2F3CB7 #B72F80 #B7AA2F #2FB766

split-complementary

#2F3CB7 #B7662F #80B72F

monochromatic

#161C56 #222C86 #2F3CB7 #515DD2 #828BDF

Accessibility & contrast

On white

8.57

#2F3CB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#2F3CB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3CB7

8.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3CB7	#FFFFFF	#000000	##FFFFFF
##2F3CB7	1.00	8.57	2.45	8.57
#FFFFFF	8.57	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053BB

Deuteranopia (green-blind)

#0046B5

Tritanopia (blue-blind)

#005D74

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #2f3cb7;
/* rgb */ color: rgb(47, 60, 183);
/* oklch */ color: oklch(43.2% 0.192 270.9);

Tailwind

colors: {
  custom: {
    50: '#7c72ce',
    500: '#2f3cb7',
    950: '#000000',
  },
}

SCSS

$custom: #2f3cb7;
$custom-light: #7c72ce;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3cb7",
  "rgb": {
    "r": 47,
    "g": 60,
    "b": 183
  },
  "hsl": {
    "h": 234.265,
    "s": 59.13,
    "l": 45.098
  },
  "oklch": {
    "l": 0.43228,
    "c": 0.19155,
    "h": 270.9
  },
  "luminance": 0.07255
}

Semantic roles & 50–950 ramp

primary

#2F3CB7

secondary

#C8C07A

accent

#D345E2

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #2F3CB7

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

Preview Lab → · Contrast checker → · Palette generator →