#2F3FA4#2F3FA4

#2F3FA4 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.0% C 0.163 H 270.7°. Best body text is #FFFFFF at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#2F3FA4
RGB	rgb(47, 63, 164)
HSL	hsl(232, 55%, 41%)
HSV	hsv(232, 71%, 64%)
CMYK	cmyk(71.3%, 61.6%, 0%, 35.7%)
CIE-LAB	lab(31.44, 28.77, -56.41)
CIE-LCH	lch(31.44, 63.33, 297.02°)
OKLab	oklab(42.02% 0.0021 -0.1628)
OKLCH	oklch(42.02% 0.163 270.7)
XYZ	xyz(9.6484, 6.8387, 35.9263)
Luminance	0.0684 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3FA4 #A4942F

analogous

#2F7AA4 #2F3FA4 #5A2FA4

triadic

#2F3FA4 #A42F3F #3FA42F

tetradic

#2F3FA4 #A42F7A #A4942F #2FA45A

square

#2F3FA4 #A42F7A #A4942F #2FA45A

split-complementary

#2F3FA4 #A45A2F #7AA42F

monochromatic

#141A45 #212D74 #2F3FA4 #4658CA #7683D8

Accessibility & contrast

On white

8.87

#2F3FA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#2F3FA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3FA4

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3FA4	#FFFFFF	#000000	##FFFFFF
##2F3FA4	1.00	8.87	2.37	8.87
#FFFFFF	8.87	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA7

Deuteranopia (green-blind)

#0045A2

Tritanopia (blue-blind)

#00596B

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2f3fa4;
/* rgb */ color: rgb(47, 63, 164);
/* oklch */ color: oklch(42.0% 0.163 270.7);

Tailwind

colors: {
  custom: {
    50: '#7874c0',
    500: '#2f3fa4',
    950: '#000000',
  },
}

SCSS

$custom: #2f3fa4;
$custom-light: #7874c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3fa4",
  "rgb": {
    "r": 47,
    "g": 63,
    "b": 164
  },
  "hsl": {
    "h": 231.795,
    "s": 55.45,
    "l": 41.373
  },
  "oklch": {
    "l": 0.42022,
    "c": 0.1628,
    "h": 270.7
  },
  "luminance": 0.0684
}

Semantic roles & 50–950 ramp

primary

#2F3FA4

secondary

#C0B56F

accent

#CA49DF

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2F3FA4

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

Preview Lab → · Contrast checker → · Palette generator →