#2F3F9D#2F3F9D

#2F3F9D is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.4% C 0.153 H 270.8°. Best body text is #FFFFFF at 9.06:1 contrast (WCAG AA passes).

Color values

HEX	#2F3F9D
RGB	rgb(47, 63, 157)
HSL	hsl(231, 54%, 40%)
HSV	hsv(231, 70%, 62%)
CMYK	cmyk(70.1%, 59.9%, 0%, 38.4%)
CIE-LAB	lab(30.86, 26.19, -53.12)
CIE-LCH	lch(30.86, 59.23, 296.24°)
OKLab	oklab(41.42% 0.0021 -0.1531)
OKLCH	oklch(41.42% 0.153 270.8)
XYZ	xyz(9.0335, 6.5928, 32.6882)
Luminance	0.0659 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3F9D #9D8D2F

analogous

#2F769D #2F3F9D #562F9D

triadic

#2F3F9D #9D2F3F #3F9D2F

tetradic

#2F3F9D #9D2F76 #9D8D2F #2F9D56

square

#2F3F9D #9D2F76 #9D8D2F #2F9D56

split-complementary

#2F3F9D #9D562F #769D2F

monochromatic

#13193F #212C6E #2F3F9D #4356C7 #7280D5

Accessibility & contrast

On white

9.06

#2F3F9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#2F3F9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3F9D

9.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3F9D	#FFFFFF	#000000	##FFFFFF
##2F3F9D	1.00	9.06	2.32	9.06
#FFFFFF	9.06	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA0

Deuteranopia (green-blind)

#00449B

Tritanopia (blue-blind)

#005667

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2f3f9d;
/* rgb */ color: rgb(47, 63, 157);
/* oklch */ color: oklch(41.4% 0.153 270.8);

Tailwind

colors: {
  custom: {
    50: '#7673bb',
    500: '#2f3f9d',
    950: '#000000',
  },
}

SCSS

$custom: #2f3f9d;
$custom-light: #7673bb;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3f9d",
  "rgb": {
    "r": 47,
    "g": 63,
    "b": 157
  },
  "hsl": {
    "h": 231.273,
    "s": 53.922,
    "l": 40
  },
  "oklch": {
    "l": 0.41416,
    "c": 0.15314,
    "h": 270.8
  },
  "luminance": 0.06594
}

Semantic roles & 50–950 ramp

primary

#2F3F9D

secondary

#BCB16B

accent

#C84BDD

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2F3F9D

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

Preview Lab → · Contrast checker → · Palette generator →