#2F3588#2F3588

#2F3588 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.7% C 0.137 H 274.6°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#2F3588
RGB	rgb(47, 53, 136)
HSL	hsl(236, 49%, 36%)
HSV	hsv(236, 65%, 53%)
CMYK	cmyk(65.4%, 61%, 0%, 46.7%)
CIE-LAB	lab(26.53, 25.15, -47.28)
CIE-LCH	lch(26.53, 53.56, 298.01°)
OKLab	oklab(37.66% 0.011 -0.1361)
OKLCH	oklch(37.66% 0.137 274.6)
XYZ	xyz(6.8879, 4.9275, 23.8759)
Luminance	0.0493 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3588 #88822F

analogous

#2F6188 #2F3588 #552F88

triadic

#2F3588 #882F35 #35882F

tetradic

#2F3588 #882F61 #88822F #2F8855

square

#2F3588 #882F61 #88822F #2F8855

split-complementary

#2F3588 #88552F #61882F

monochromatic

#10122D #1F235B #2F3588 #3F47B5 #676ECA

Accessibility & contrast

On white

10.58

#2F3588 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#2F3588 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3588

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3588	#FFFFFF	#000000	##FFFFFF
##2F3588	1.00	10.58	1.99	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438B

Deuteranopia (green-blind)

#003B86

Tritanopia (blue-blind)

#004959

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2f3588;
/* rgb */ color: rgb(47, 53, 136);
/* oklch */ color: oklch(37.7% 0.137 274.6);

Tailwind

colors: {
  custom: {
    50: '#726cab',
    500: '#2f3588',
    950: '#000000',
  },
}

SCSS

$custom: #2f3588;
$custom-light: #726cab;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3588",
  "rgb": {
    "r": 47,
    "g": 53,
    "b": 136
  },
  "hsl": {
    "h": 235.955,
    "s": 48.634,
    "l": 35.882
  },
  "oklch": {
    "l": 0.37664,
    "c": 0.13651,
    "h": 274.6
  },
  "luminance": 0.04928
}

Semantic roles & 50–950 ramp

primary

#2F3588

secondary

#B1AC61

accent

#CF50D8

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #2F3588

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

Preview Lab → · Contrast checker → · Palette generator →