#2F3F97#2F3F97

#2F3F97 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.9% C 0.145 H 270.8°. Best body text is #FFFFFF at 9.22:1 contrast (WCAG AA passes).

Color values

HEX	#2F3F97
RGB	rgb(47, 63, 151)
HSL	hsl(231, 53%, 39%)
HSV	hsv(231, 69%, 59%)
CMYK	cmyk(68.9%, 58.3%, 0%, 40.8%)
CIE-LAB	lab(30.38, 23.97, -50.25)
CIE-LCH	lch(30.38, 55.68, 295.50°)
OKLab	oklab(40.91% 0.002 -0.1447)
OKLCH	oklch(40.91% 0.145 270.8)
XYZ	xyz(8.5338, 6.3929, 30.0564)
Luminance	0.0639 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3F97 #97872F

analogous

#2F7397 #2F3F97 #532F97

triadic

#2F3F97 #972F3F #3F972F

tetradic

#2F3F97 #972F73 #97872F #2F9753

square

#2F3F97 #972F73 #97872F #2F9753

split-complementary

#2F3F97 #97532F #73972F

monochromatic

#12183A #202C68 #2F3F97 #4054C3 #6E7ED2

Accessibility & contrast

On white

9.22

#2F3F97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#2F3F97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3F97

9.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3F97	#FFFFFF	#000000	##FFFFFF
##2F3F97	1.00	9.22	2.28	9.22
#FFFFFF	9.22	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9A

Deuteranopia (green-blind)

#004395

Tritanopia (blue-blind)

#005464

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2f3f97;
/* rgb */ color: rgb(47, 63, 151);
/* oklch */ color: oklch(40.9% 0.145 270.8);

Tailwind

colors: {
  custom: {
    50: '#7573b6',
    500: '#2f3f97',
    950: '#000000',
  },
}

SCSS

$custom: #2f3f97;
$custom-light: #7573b6;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3f97",
  "rgb": {
    "r": 47,
    "g": 63,
    "b": 151
  },
  "hsl": {
    "h": 230.769,
    "s": 52.525,
    "l": 38.824
  },
  "oklch": {
    "l": 0.40909,
    "c": 0.1447,
    "h": 270.8
  },
  "luminance": 0.06394
}

Semantic roles & 50–950 ramp

primary

#2F3F97

secondary

#B9AD68

accent

#C64CDC

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #2F3F97

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

Preview Lab → · Contrast checker → · Palette generator →