#2F3F9E#2F3F9E

#2F3F9E is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.5% C 0.155 H 270.8°. Best body text is #FFFFFF at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#2F3F9E
RGB	rgb(47, 63, 158)
HSL	hsl(231, 54%, 40%)
HSV	hsv(231, 70%, 62%)
CMYK	cmyk(70.3%, 60.1%, 0%, 38%)
CIE-LAB	lab(30.94, 26.56, -53.60)
CIE-LCH	lch(30.94, 59.82, 296.36°)
OKLab	oklab(41.5% 0.0021 -0.1545)
OKLCH	oklch(41.5% 0.155 270.8)
XYZ	xyz(9.1193, 6.6271, 33.1397)
Luminance	0.0663 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3F9E #9E8E2F

analogous

#2F779E #2F3F9E #562F9E

triadic

#2F3F9E #9E2F3F #3F9E2F

tetradic

#2F3F9E #9E2F77 #9E8E2F #2F9E56

square

#2F3F9E #9E2F77 #9E8E2F #2F9E56

split-complementary

#2F3F9E #9E562F #779E2F

monochromatic

#131940 #212C6F #2F3F9E #4356C7 #7281D5

Accessibility & contrast

On white

9.03

#2F3F9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#2F3F9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3F9E

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3F9E	#FFFFFF	#000000	##FFFFFF
##2F3F9E	1.00	9.03	2.33	9.03
#FFFFFF	9.03	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA1

Deuteranopia (green-blind)

#00449C

Tritanopia (blue-blind)

#005768

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2f3f9e;
/* rgb */ color: rgb(47, 63, 158);
/* oklch */ color: oklch(41.5% 0.155 270.8);

Tailwind

colors: {
  custom: {
    50: '#7673bb',
    500: '#2f3f9e',
    950: '#000000',
  },
}

SCSS

$custom: #2f3f9e;
$custom-light: #7673bb;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3f9e",
  "rgb": {
    "r": 47,
    "g": 63,
    "b": 158
  },
  "hsl": {
    "h": 231.351,
    "s": 54.146,
    "l": 40.196
  },
  "oklch": {
    "l": 0.41501,
    "c": 0.15453,
    "h": 270.8
  },
  "luminance": 0.06628
}

Semantic roles & 50–950 ramp

primary

#2F3F9E

secondary

#BDB16C

accent

#C84ADE

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2F3F9E

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

Preview Lab → · Contrast checker → · Palette generator →