#2F3A8F#2F3A8F

#2F3A8F is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.2% C 0.140 H 272.6°. Best body text is #FFFFFF at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#2F3A8F
RGB	rgb(47, 58, 143)
HSL	hsl(233, 51%, 37%)
HSV	hsv(233, 67%, 56%)
CMYK	cmyk(67.1%, 59.4%, 0%, 43.9%)
CIE-LAB	lab(28.41, 24.36, -48.55)
CIE-LCH	lch(28.41, 54.32, 296.65°)
OKLab	oklab(39.24% 0.0064 -0.1397)
OKLCH	oklch(39.24% 0.14 272.6)
XYZ	xyz(7.6416, 5.6129, 26.6620)
Luminance	0.0561 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3A8F #8F842F

analogous

#2F6A8F #2F3A8F #542F8F

triadic

#2F3A8F #8F2F3A #3A8F2F

tetradic

#2F3A8F #8F2F6A #8F842F #2F8F54

square

#2F3A8F #8F2F6A #8F842F #2F8F54

split-complementary

#2F3A8F #8F542F #6A8F2F

monochromatic

#111533 #202761 #2F3A8F #3E4DBD #6A76CE

Accessibility & contrast

On white

9.89

#2F3A8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#2F3A8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3A8F

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3A8F	#FFFFFF	#000000	##FFFFFF
##2F3A8F	1.00	9.89	2.12	9.89
#FFFFFF	9.89	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004792

Deuteranopia (green-blind)

#003F8D

Tritanopia (blue-blind)

#004F5E

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2f3a8f;
/* rgb */ color: rgb(47, 58, 143);
/* oklch */ color: oklch(39.2% 0.140 272.6);

Tailwind

colors: {
  custom: {
    50: '#7370b0',
    500: '#2f3a8f',
    950: '#000000',
  },
}

SCSS

$custom: #2f3a8f;
$custom-light: #7370b0;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3a8f",
  "rgb": {
    "r": 47,
    "g": 58,
    "b": 143
  },
  "hsl": {
    "h": 233.125,
    "s": 50.526,
    "l": 37.255
  },
  "oklch": {
    "l": 0.39242,
    "c": 0.13988,
    "h": 272.6
  },
  "luminance": 0.05614
}

Semantic roles & 50–950 ramp

primary

#2F3A8F

secondary

#B5AC65

accent

#CA4EDA

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#090711

muted

#7B7A80

Preview Lab

Preview with #2F3A8F

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

Preview Lab → · Contrast checker → · Palette generator →