#2F3BAB#2F3BAB

#2F3BAB is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.9% C 0.177 H 271.5°. Best body text is #FFFFFF at 9.00:1 contrast (WCAG AA passes).

Color values

HEX	#2F3BAB
RGB	rgb(47, 59, 171)
HSL	hsl(234, 57%, 43%)
HSV	hsv(234, 73%, 67%)
CMYK	cmyk(72.5%, 65.5%, 0%, 32.9%)
CIE-LAB	lab(31.05, 33.92, -61.26)
CIE-LCH	lch(31.05, 70.02, 298.97°)
OKLab	oklab(41.92% 0.0046 -0.177)
OKLCH	oklch(41.92% 0.177 271.5)
XYZ	xyz(10.0845, 6.6715, 39.2764)
Luminance	0.0667 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.31

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3BAB #AB9F2F

analogous

#2F79AB #2F3BAB #612FAB

triadic

#2F3BAB #AB2F3B #3BAB2F

tetradic

#2F3BAB #AB2F79 #AB9F2F #2FAB61

square

#2F3BAB #AB2F79 #AB9F2F #2FAB61

split-complementary

#2F3BAB #AB612F #79AB2F

monochromatic

#151A4B #222A7B #2F3BAB #4A57CD #7A83DA

Accessibility & contrast

On white

9.00

#2F3BAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#2F3BAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3BAB

9.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3BAB	#FFFFFF	#000000	##FFFFFF
##2F3BAB	1.00	9.00	2.33	9.00
#FFFFFF	9.00	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FAF

Deuteranopia (green-blind)

#0043A9

Tritanopia (blue-blind)

#00586D

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2f3bab;
/* rgb */ color: rgb(47, 59, 171);
/* oklch */ color: oklch(41.9% 0.177 271.5);

Tailwind

colors: {
  custom: {
    50: '#7a71c5',
    500: '#2f3bab',
    950: '#000000',
  },
}

SCSS

$custom: #2f3bab;
$custom-light: #7a71c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3bab",
  "rgb": {
    "r": 47,
    "g": 59,
    "b": 171
  },
  "hsl": {
    "h": 234.194,
    "s": 56.881,
    "l": 42.745
  },
  "oklch": {
    "l": 0.41923,
    "c": 0.17708,
    "h": 271.5
  },
  "luminance": 0.06673
}

Semantic roles & 50–950 ramp

primary

#2F3BAB

secondary

#C3BB73

accent

#D148E0

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2F3BAB

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

Preview Lab → · Contrast checker → · Palette generator →