#2F40AA#2F40AA

#2F40AA is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.7% C 0.170 H 270.4°. Best body text is #FFFFFF at 8.63:1 contrast (WCAG AA passes).

Color values

HEX	#2F40AA
RGB	rgb(47, 64, 170)
HSL	hsl(232, 57%, 43%)
HSV	hsv(232, 72%, 67%)
CMYK	cmyk(72.4%, 62.4%, 0%, 33.3%)
CIE-LAB	lab(32.20, 30.32, -58.78)
CIE-LCH	lch(32.20, 66.14, 297.29°)
OKLab	oklab(42.74% 0.0012 -0.1697)
OKLCH	oklch(42.74% 0.17 270.4)
XYZ	xyz(10.2589, 7.1724, 38.8662)
Luminance	0.0717 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F40AA #AA992F

analogous

#2F7EAA #2F40AA #5B2FAA

triadic

#2F40AA #AA2F40 #40AA2F

tetradic

#2F40AA #AA2F7E #AA992F #2FAA5B

square

#2F40AA #AA2F7E #AA992F #2FAA5B

split-complementary

#2F40AA #AA5B2F #7EAA2F

monochromatic

#141C4A #222E7A #2F40AA #495CCD #7987DA

Accessibility & contrast

On white

8.63

#2F40AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#2F40AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F40AA

8.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F40AA	#FFFFFF	#000000	##FFFFFF
##2F40AA	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)

#0052AD

Deuteranopia (green-blind)

#0046A8

Tritanopia (blue-blind)

#005B6F

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #2f40aa;
/* rgb */ color: rgb(47, 64, 170);
/* oklch */ color: oklch(42.7% 0.170 270.4);

Tailwind

colors: {
  custom: {
    50: '#7974c4',
    500: '#2f40aa',
    950: '#000000',
  },
}

SCSS

$custom: #2f40aa;
$custom-light: #7974c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2f40aa",
  "rgb": {
    "r": 47,
    "g": 64,
    "b": 170
  },
  "hsl": {
    "h": 231.707,
    "s": 56.682,
    "l": 42.549
  },
  "oklch": {
    "l": 0.42741,
    "c": 0.16972,
    "h": 270.4
  },
  "luminance": 0.07173
}

Semantic roles & 50–950 ramp

primary

#2F40AA

secondary

#C2B772

accent

#CB48E0

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2F40AA

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

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