#2F3AA4#2F3AA4

#2F3AA4 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.1% C 0.169 H 272.0°. Best body text is #FFFFFF at 9.28:1 contrast (WCAG AA passes).

Color values

HEX	#2F3AA4
RGB	rgb(47, 58, 164)
HSL	hsl(234, 55%, 41%)
HSV	hsv(234, 71%, 64%)
CMYK	cmyk(71.3%, 64.6%, 0%, 35.7%)
CIE-LAB	lab(30.18, 32.03, -58.47)
CIE-LCH	lch(30.18, 66.67, 298.72°)
OKLab	oklab(41.1% 0.0058 -0.1689)
OKLCH	oklch(41.1% 0.169 272)
XYZ	xyz(9.3839, 6.3099, 35.8381)
Luminance	0.0631 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3AA4 #A4992F

analogous

#2F75A4 #2F3AA4 #5F2FA4

triadic

#2F3AA4 #A42F3A #3AA42F

tetradic

#2F3AA4 #A42F75 #A4992F #2FA45F

square

#2F3AA4 #A42F75 #A4992F #2FA45F

split-complementary

#2F3AA4 #A45F2F #75A42F

monochromatic

#141845 #212974 #2F3AA4 #4653CA #767FD8

Accessibility & contrast

On white

9.28

#2F3AA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#2F3AA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3AA4

9.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3AA4	#FFFFFF	#000000	##FFFFFF
##2F3AA4	1.00	9.28	2.26	9.28
#FFFFFF	9.28	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA7

Deuteranopia (green-blind)

#0042A2

Tritanopia (blue-blind)

#005669

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2f3aa4;
/* rgb */ color: rgb(47, 58, 164);
/* oklch */ color: oklch(41.1% 0.169 272.0);

Tailwind

colors: {
  custom: {
    50: '#7870c0',
    500: '#2f3aa4',
    950: '#000000',
  },
}

SCSS

$custom: #2f3aa4;
$custom-light: #7870c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3aa4",
  "rgb": {
    "r": 47,
    "g": 58,
    "b": 164
  },
  "hsl": {
    "h": 234.359,
    "s": 55.45,
    "l": 41.373
  },
  "oklch": {
    "l": 0.41097,
    "c": 0.16896,
    "h": 272
  },
  "luminance": 0.06311
}

Semantic roles & 50–950 ramp

primary

#2F3AA4

secondary

#C0B86F

accent

#D149DF

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2F3AA4

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

Preview Lab → · Contrast checker → · Palette generator →