#2F40BF#2F40BF

#2F40BF is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.7% C 0.197 H 270.0°. Best body text is #FFFFFF at 8.06:1 contrast (WCAG AA passes).

Color values

HEX	#2F40BF
RGB	rgb(47, 64, 191)
HSL	hsl(233, 61%, 47%)
HSV	hsv(233, 75%, 75%)
CMYK	cmyk(75.4%, 66.5%, 0%, 25.1%)
CIE-LAB	lab(34.05, 37.91, -68.19)
CIE-LCH	lch(34.05, 78.02, 299.07°)
OKLab	oklab(44.67% 0.0001 -0.1973)
OKLCH	oklch(44.67% 0.197 270)
XYZ	xyz(12.4064, 8.0314, 50.1765)
Luminance	0.0803 (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

#2F40BF #BFAE2F

analogous

#2F88BF #2F40BF #662FBF

triadic

#2F40BF #BF2F40 #40BF2F

tetradic

#2F40BF #BF2F88 #BFAE2F #2FBF66

square

#2F40BF #BF2F88 #BFAE2F #2FBF66

split-complementary

#2F40BF #BF662F #88BF2F

monochromatic

#171F5D #23308E #2F40BF #5665D5 #8792E1

Accessibility & contrast

On white

8.06

#2F40BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#2F40BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F40BF

8.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F40BF	#FFFFFF	#000000	##FFFFFF
##2F40BF	1.00	8.06	2.61	8.06
#FFFFFF	8.06	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C3

Deuteranopia (green-blind)

#0049BD

Tritanopia (blue-blind)

#00627A

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #2f40bf;
/* rgb */ color: rgb(47, 64, 191);
/* oklch */ color: oklch(44.7% 0.197 270.0);

Tailwind

colors: {
  custom: {
    50: '#7e75d3',
    500: '#2f40bf',
    950: '#000000',
  },
}

SCSS

$custom: #2f40bf;
$custom-light: #7e75d3;
$custom-dark: #000000;

JSON

{
  "hex": "#2f40bf",
  "rgb": {
    "r": 47,
    "g": 64,
    "b": 191
  },
  "hsl": {
    "h": 232.917,
    "s": 60.504,
    "l": 46.667
  },
  "oklch": {
    "l": 0.44669,
    "c": 0.19729,
    "h": 270
  },
  "luminance": 0.08033
}

Semantic roles & 50–950 ramp

primary

#2F40BF

secondary

#CBC27F

accent

#D144E4

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #2F40BF

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

Preview Lab → · Contrast checker → · Palette generator →