#2F40B2#2F40B2

#2F40B2 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.5% C 0.180 H 270.3°. Best body text is #FFFFFF at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#2F40B2
RGB	rgb(47, 64, 178)
HSL	hsl(232, 58%, 44%)
HSV	hsv(232, 74%, 70%)
CMYK	cmyk(73.6%, 64%, 0%, 30.2%)
CIE-LAB	lab(32.88, 33.24, -62.42)
CIE-LCH	lch(32.88, 70.72, 298.03°)
OKLab	oklab(43.46% 0.0009 -0.1804)
OKLCH	oklch(43.46% 0.18 270.3)
XYZ	xyz(11.0388, 7.4843, 42.9737)
Luminance	0.0748 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F40B2 #B2A12F

analogous

#2F82B2 #2F40B2 #602FB2

triadic

#2F40B2 #B22F40 #40B22F

tetradic

#2F40B2 #B22F82 #B2A12F #2FB260

square

#2F40B2 #B22F82 #B2A12F #2FB260

split-complementary

#2F40B2 #B2602F #82B22F

monochromatic

#151D51 #222F82 #2F40B2 #4E5FD0 #7E8BDD

Accessibility & contrast

On white

8.41

#2F40B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#2F40B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F40B2

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F40B2	#FFFFFF	#000000	##FFFFFF
##2F40B2	1.00	8.41	2.50	8.41
#FFFFFF	8.41	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B6

Deuteranopia (green-blind)

#0047B0

Tritanopia (blue-blind)

#005E73

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #2f40b2;
/* rgb */ color: rgb(47, 64, 178);
/* oklch */ color: oklch(43.5% 0.180 270.3);

Tailwind

colors: {
  custom: {
    50: '#7b75ca',
    500: '#2f40b2',
    950: '#000000',
  },
}

SCSS

$custom: #2f40b2;
$custom-light: #7b75ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2f40b2",
  "rgb": {
    "r": 47,
    "g": 64,
    "b": 178
  },
  "hsl": {
    "h": 232.214,
    "s": 58.222,
    "l": 44.118
  },
  "oklch": {
    "l": 0.43461,
    "c": 0.1804,
    "h": 270.3
  },
  "luminance": 0.07485
}

Semantic roles & 50–950 ramp

primary

#2F40B2

secondary

#C6BC77

accent

#CD46E1

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2F40B2

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

Preview Lab → · Contrast checker → · Palette generator →