#2F3BAA#2F3BAA

#2F3BAA is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.8% C 0.176 H 271.5°. Best body text is #FFFFFF at 9.02:1 contrast (WCAG AA passes).

Color values

HEX	#2F3BAA
RGB	rgb(47, 59, 170)
HSL	hsl(234, 57%, 43%)
HSV	hsv(234, 72%, 67%)
CMYK	cmyk(72.4%, 65.3%, 0%, 33.3%)
CIE-LAB	lab(30.96, 33.56, -60.80)
CIE-LCH	lch(30.96, 69.45, 298.89°)
OKLab	oklab(41.83% 0.0047 -0.1757)
OKLCH	oklch(41.83% 0.176 271.5)
XYZ	xyz(9.9895, 6.6335, 38.7764)
Luminance	0.0664 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.42

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3BAA #AA9E2F

analogous

#2F79AA #2F3BAA #602FAA

triadic

#2F3BAA #AA2F3B #3BAA2F

tetradic

#2F3BAA #AA2F79 #AA9E2F #2FAA60

square

#2F3BAA #AA2F79 #AA9E2F #2FAA60

split-complementary

#2F3BAA #AA602F #79AA2F

monochromatic

#141A4A #222A7A #2F3BAA #4956CD #7983DA

Accessibility & contrast

On white

9.02

#2F3BAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#2F3BAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3BAA

9.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3BAA	#FFFFFF	#000000	##FFFFFF
##2F3BAA	1.00	9.02	2.33	9.02
#FFFFFF	9.02	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FAE

Deuteranopia (green-blind)

#0043A8

Tritanopia (blue-blind)

#00586D

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2f3baa;
/* rgb */ color: rgb(47, 59, 170);
/* oklch */ color: oklch(41.8% 0.176 271.5);

Tailwind

colors: {
  custom: {
    50: '#7971c4',
    500: '#2f3baa',
    950: '#000000',
  },
}

SCSS

$custom: #2f3baa;
$custom-light: #7971c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3baa",
  "rgb": {
    "r": 47,
    "g": 59,
    "b": 170
  },
  "hsl": {
    "h": 234.146,
    "s": 56.682,
    "l": 42.549
  },
  "oklch": {
    "l": 0.4183,
    "c": 0.17575,
    "h": 271.5
  },
  "luminance": 0.06635
}

Semantic roles & 50–950 ramp

primary

#2F3BAA

secondary

#C2BB72

accent

#D148E0

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2F3BAA

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

Preview Lab → · Contrast checker → · Palette generator →