#2F3188#2F3188

#2F3188 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.9% C 0.142 H 275.9°. Best body text is #FFFFFF at 10.96:1 contrast (WCAG AA passes).

Color values

HEX	#2F3188
RGB	rgb(47, 49, 136)
HSL	hsl(239, 49%, 36%)
HSV	hsv(239, 65%, 53%)
CMYK	cmyk(65.4%, 64%, 0%, 46.7%)
CIE-LAB	lab(25.50, 27.81, -48.96)
CIE-LCH	lch(25.50, 56.31, 299.60°)
OKLab	oklab(36.91% 0.0147 -0.141)
OKLCH	oklch(36.91% 0.142 275.9)
XYZ	xyz(6.7131, 4.5780, 23.8177)
Luminance	0.0458 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3188 #88862F

analogous

#2F5D88 #2F3188 #592F88

triadic

#2F3188 #882F31 #31882F

tetradic

#2F3188 #882F5D #88862F #2F8859

square

#2F3188 #882F5D #88862F #2F8859

split-complementary

#2F3188 #88592F #5D882F

monochromatic

#10102D #1F215B #2F3188 #3F41B5 #6769CA

Accessibility & contrast

On white

10.96

#2F3188 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#2F3188 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3188

10.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3188	#FFFFFF	#000000	##FFFFFF
##2F3188	1.00	10.96	1.92	10.96
#FFFFFF	10.96	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00408B

Deuteranopia (green-blind)

#003986

Tritanopia (blue-blind)

#004757

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #2f3188;
/* rgb */ color: rgb(47, 49, 136);
/* oklch */ color: oklch(36.9% 0.142 275.9);

Tailwind

colors: {
  custom: {
    50: '#7369ab',
    500: '#2f3188',
    950: '#000000',
  },
}

SCSS

$custom: #2f3188;
$custom-light: #7369ab;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3188",
  "rgb": {
    "r": 47,
    "g": 49,
    "b": 136
  },
  "hsl": {
    "h": 238.652,
    "s": 48.634,
    "l": 35.882
  },
  "oklch": {
    "l": 0.36905,
    "c": 0.14179,
    "h": 275.9
  },
  "luminance": 0.04579
}

Semantic roles & 50–950 ramp

primary

#2F3188

secondary

#B1B061

accent

#D550D8

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #2F3188

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

Preview Lab → · Contrast checker → · Palette generator →