#2F3381#2F3381

#2F3381 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.7% C 0.129 H 275.8°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).

Color values

HEX	#2F3381
RGB	rgb(47, 51, 129)
HSL	hsl(237, 47%, 35%)
HSV	hsv(237, 64%, 51%)
CMYK	cmyk(63.6%, 60.5%, 0%, 49.4%)
CIE-LAB	lab(25.43, 23.95, -44.69)
CIE-LCH	lch(25.43, 50.70, 298.19°)
OKLab	oklab(36.67% 0.013 -0.1285)
OKLCH	oklch(36.67% 0.129 275.8)
XYZ	xyz(6.3173, 4.5565, 21.3112)
Luminance	0.0456 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3381 #817D2F

analogous

#2F5C81 #2F3381 #542F81

triadic

#2F3381 #812F33 #33812F

tetradic

#2F3381 #812F5C #817D2F #2F8154

square

#2F3381 #812F5C #817D2F #2F8154

split-complementary

#2F3381 #81542F #5C812F

monochromatic

#0E1027 #1F2154 #2F3381 #3F45AE #6469C6

Accessibility & contrast

On white

10.99

#2F3381 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#2F3381 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3381

10.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3381	#FFFFFF	#000000	##FFFFFF
##2F3381	1.00	10.99	1.91	10.99
#FFFFFF	10.99	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004084

Deuteranopia (green-blind)

#00397F

Tritanopia (blue-blind)

#004654

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #2f3381;
/* rgb */ color: rgb(47, 51, 129);
/* oklch */ color: oklch(36.7% 0.129 275.8);

Tailwind

colors: {
  custom: {
    50: '#716aa6',
    500: '#2f3381',
    950: '#000000',
  },
}

SCSS

$custom: #2f3381;
$custom-light: #716aa6;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3381",
  "rgb": {
    "r": 47,
    "g": 51,
    "b": 129
  },
  "hsl": {
    "h": 237.073,
    "s": 46.591,
    "l": 34.51
  },
  "oklch": {
    "l": 0.36674,
    "c": 0.12912,
    "h": 275.8
  },
  "luminance": 0.04557
}

Semantic roles & 50–950 ramp

primary

#2F3381

secondary

#ADAA5E

accent

#D052D6

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #2F3381

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

Preview Lab → · Contrast checker → · Palette generator →