#2F40BC#2F40BC

#2F40BC is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.4% C 0.193 H 270.1°. Best body text is #FFFFFF at 8.14:1 contrast (WCAG AA passes).

Color values

HEX	#2F40BC
RGB	rgb(47, 64, 188)
HSL	hsl(233, 60%, 46%)
HSV	hsv(233, 75%, 74%)
CMYK	cmyk(75%, 66%, 0%, 26.3%)
CIE-LAB	lab(33.78, 36.84, -66.88)
CIE-LCH	lch(33.78, 76.35, 298.85°)
OKLab	oklab(44.39% 0.0003 -0.1934)
OKLCH	oklch(44.39% 0.193 270.1)
XYZ	xyz(12.0797, 7.9007, 48.4556)
Luminance	0.0790 (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

#2F40BC #BCAB2F

analogous

#2F86BC #2F40BC #642FBC

triadic

#2F40BC #BC2F40 #40BC2F

tetradic

#2F40BC #BC2F86 #BCAB2F #2FBC64

square

#2F40BC #BC2F86 #BCAB2F #2FBC64

split-complementary

#2F40BC #BC642F #86BC2F

monochromatic

#171F5A #232F8B #2F40BC #5463D4 #8590E0

Accessibility & contrast

On white

8.14

#2F40BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#2F40BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F40BC

8.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F40BC	#FFFFFF	#000000	##FFFFFF
##2F40BC	1.00	8.14	2.58	8.14
#FFFFFF	8.14	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C0

Deuteranopia (green-blind)

#0049BA

Tritanopia (blue-blind)

#006178

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #2f40bc;
/* rgb */ color: rgb(47, 64, 188);
/* oklch */ color: oklch(44.4% 0.193 270.1);

Tailwind

colors: {
  custom: {
    50: '#7d75d1',
    500: '#2f40bc',
    950: '#000000',
  },
}

SCSS

$custom: #2f40bc;
$custom-light: #7d75d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2f40bc",
  "rgb": {
    "r": 47,
    "g": 64,
    "b": 188
  },
  "hsl": {
    "h": 232.766,
    "s": 60,
    "l": 46.078
  },
  "oklch": {
    "l": 0.44386,
    "c": 0.19344,
    "h": 270.1
  },
  "luminance": 0.07902
}

Semantic roles & 50–950 ramp

primary

#2F40BC

secondary

#CAC17D

accent

#D045E3

background

#F8F7FD

surface

#EFEDFA

border

#CAC8D3

text

#0B0814

muted

#7C7B83

Preview Lab

Preview with #2F40BC

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

Preview Lab → · Contrast checker → · Palette generator →