#2F3F9C#2F3F9C

#2F3F9C is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.3% C 0.152 H 270.8°. Best body text is #FFFFFF at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#2F3F9C
RGB	rgb(47, 63, 156)
HSL	hsl(231, 54%, 40%)
HSV	hsv(231, 70%, 61%)
CMYK	cmyk(69.9%, 59.6%, 0%, 38.8%)
CIE-LAB	lab(30.78, 25.82, -52.65)
CIE-LCH	lch(30.78, 58.64, 296.13°)
OKLab	oklab(41.33% 0.0021 -0.1517)
OKLCH	oklch(41.33% 0.152 270.8)
XYZ	xyz(8.9485, 6.5588, 32.2404)
Luminance	0.0656 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3F9C #9C8C2F

analogous

#2F759C #2F3F9C #562F9C

triadic

#2F3F9C #9C2F3F #3F9C2F

tetradic

#2F3F9C #9C2F75 #9C8C2F #2F9C56

square

#2F3F9C #9C2F75 #9C8C2F #2F9C56

split-complementary

#2F3F9C #9C562F #759C2F

monochromatic

#13193E #212C6D #2F3F9C #4255C6 #7180D4

Accessibility & contrast

On white

9.08

#2F3F9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#2F3F9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3F9C

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3F9C	#FFFFFF	#000000	##FFFFFF
##2F3F9C	1.00	9.08	2.31	9.08
#FFFFFF	9.08	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004E9F

Deuteranopia (green-blind)

#00449A

Tritanopia (blue-blind)

#005667

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2f3f9c;
/* rgb */ color: rgb(47, 63, 156);
/* oklch */ color: oklch(41.3% 0.152 270.8);

Tailwind

colors: {
  custom: {
    50: '#7673ba',
    500: '#2f3f9c',
    950: '#000000',
  },
}

SCSS

$custom: #2f3f9c;
$custom-light: #7673ba;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3f9c",
  "rgb": {
    "r": 47,
    "g": 63,
    "b": 156
  },
  "hsl": {
    "h": 231.193,
    "s": 53.695,
    "l": 39.804
  },
  "oklch": {
    "l": 0.4133,
    "c": 0.15174,
    "h": 270.8
  },
  "luminance": 0.0656
}

Semantic roles & 50–950 ramp

primary

#2F3F9C

secondary

#BCB06B

accent

#C84BDD

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2F3F9C

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

Preview Lab → · Contrast checker → · Palette generator →