#2F3F99#2F3F99

#2F3F99 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.1% C 0.148 H 270.8°. Best body text is #FFFFFF at 9.16:1 contrast (WCAG AA passes).

Color values

HEX	#2F3F99
RGB	rgb(47, 63, 153)
HSL	hsl(231, 53%, 39%)
HSV	hsv(231, 69%, 60%)
CMYK	cmyk(69.3%, 58.8%, 0%, 40%)
CIE-LAB	lab(30.54, 24.71, -51.22)
CIE-LCH	lch(30.54, 56.86, 295.75°)
OKLab	oklab(41.08% 0.0021 -0.1475)
OKLCH	oklch(41.08% 0.148 270.8)
XYZ	xyz(8.6976, 6.4584, 30.9191)
Luminance	0.0646 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3F99 #99892F

analogous

#2F7499 #2F3F99 #542F99

triadic

#2F3F99 #992F3F #3F992F

tetradic

#2F3F99 #992F74 #99892F #2F9954

square

#2F3F99 #992F74 #99892F #2F9954

split-complementary

#2F3F99 #99542F #74992F

monochromatic

#12183B #212C6A #2F3F99 #4155C5 #6F7ED3

Accessibility & contrast

On white

9.16

#2F3F99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#2F3F99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3F99

9.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3F99	#FFFFFF	#000000	##FFFFFF
##2F3F99	1.00	9.16	2.29	9.16
#FFFFFF	9.16	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004D9C

Deuteranopia (green-blind)

#004397

Tritanopia (blue-blind)

#005565

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2f3f99;
/* rgb */ color: rgb(47, 63, 153);
/* oklch */ color: oklch(41.1% 0.148 270.8);

Tailwind

colors: {
  custom: {
    50: '#7573b8',
    500: '#2f3f99',
    950: '#000000',
  },
}

SCSS

$custom: #2f3f99;
$custom-light: #7573b8;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3f99",
  "rgb": {
    "r": 47,
    "g": 63,
    "b": 153
  },
  "hsl": {
    "h": 230.943,
    "s": 53,
    "l": 39.216
  },
  "oklch": {
    "l": 0.41077,
    "c": 0.14753,
    "h": 270.8
  },
  "luminance": 0.06459
}

Semantic roles & 50–950 ramp

primary

#2F3F99

secondary

#BAAE69

accent

#C74BDC

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #2F3F99

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

Preview Lab → · Contrast checker → · Palette generator →