#2F3DAA#2F3DAA

#2F3DAA is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.2% C 0.173 H 271.1°. Best body text is #FFFFFF at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#2F3DAA
RGB	rgb(47, 61, 170)
HSL	hsl(233, 57%, 43%)
HSV	hsv(233, 72%, 67%)
CMYK	cmyk(72.4%, 64.1%, 0%, 33.3%)
CIE-LAB	lab(31.45, 32.27, -60.00)
CIE-LCH	lch(31.45, 68.13, 298.27°)
OKLab	oklab(42.19% 0.0033 -0.1733)
OKLCH	oklch(42.19% 0.173 271.1)
XYZ	xyz(10.0943, 6.8431, 38.8113)
Luminance	0.0684 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3DAA #AA9C2F

analogous

#2F7AAA #2F3DAA #5F2FAA

triadic

#2F3DAA #AA2F3D #3DAA2F

tetradic

#2F3DAA #AA2F7A #AA9C2F #2FAA5F

square

#2F3DAA #AA2F7A #AA9C2F #2FAA5F

split-complementary

#2F3DAA #AA5F2F #7AAA2F

monochromatic

#141B4A #222C7A #2F3DAA #4958CD #7984DA

Accessibility & contrast

On white

8.87

#2F3DAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#2F3DAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3DAA

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3DAA	#FFFFFF	#000000	##FFFFFF
##2F3DAA	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)

#0050AD

Deuteranopia (green-blind)

#0044A8

Tritanopia (blue-blind)

#00596E

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2f3daa;
/* rgb */ color: rgb(47, 61, 170);
/* oklch */ color: oklch(42.2% 0.173 271.1);

Tailwind

colors: {
  custom: {
    50: '#7972c4',
    500: '#2f3daa',
    950: '#000000',
  },
}

SCSS

$custom: #2f3daa;
$custom-light: #7972c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3daa",
  "rgb": {
    "r": 47,
    "g": 61,
    "b": 170
  },
  "hsl": {
    "h": 233.171,
    "s": 56.682,
    "l": 42.549
  },
  "oklch": {
    "l": 0.42189,
    "c": 0.17336,
    "h": 271.1
  },
  "luminance": 0.06844
}

Semantic roles & 50–950 ramp

primary

#2F3DAA

secondary

#C2B972

accent

#CF48E0

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2F3DAA

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

Preview Lab → · Contrast checker → · Palette generator →