#2F3DA4#2F3DA4

#2F3DA4 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.6% C 0.165 H 271.2°. Best body text is #FFFFFF at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#2F3DA4
RGB	rgb(47, 61, 164)
HSL	hsl(233, 55%, 41%)
HSV	hsv(233, 71%, 64%)
CMYK	cmyk(71.3%, 62.8%, 0%, 35.7%)
CIE-LAB	lab(30.93, 30.09, -57.24)
CIE-LCH	lch(30.93, 64.67, 297.72°)
OKLab	oklab(41.65% 0.0036 -0.1652)
OKLCH	oklch(41.65% 0.165 271.2)
XYZ	xyz(9.5396, 6.6212, 35.8900)
Luminance	0.0662 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3DA4 #A4962F

analogous

#2F78A4 #2F3DA4 #5C2FA4

triadic

#2F3DA4 #A42F3D #3DA42F

tetradic

#2F3DA4 #A42F78 #A4962F #2FA45C

square

#2F3DA4 #A42F78 #A4962F #2FA45C

split-complementary

#2F3DA4 #A45C2F #78A42F

monochromatic

#141A45 #212B74 #2F3DA4 #4656CA #7681D8

Accessibility & contrast

On white

9.03

#2F3DA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#2F3DA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3DA4

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3DA4	#FFFFFF	#000000	##FFFFFF
##2F3DA4	1.00	9.03	2.32	9.03
#FFFFFF	9.03	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA7

Deuteranopia (green-blind)

#0043A2

Tritanopia (blue-blind)

#00576A

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2f3da4;
/* rgb */ color: rgb(47, 61, 164);
/* oklch */ color: oklch(41.6% 0.165 271.2);

Tailwind

colors: {
  custom: {
    50: '#7872c0',
    500: '#2f3da4',
    950: '#000000',
  },
}

SCSS

$custom: #2f3da4;
$custom-light: #7872c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3da4",
  "rgb": {
    "r": 47,
    "g": 61,
    "b": 164
  },
  "hsl": {
    "h": 232.821,
    "s": 55.45,
    "l": 41.373
  },
  "oklch": {
    "l": 0.41647,
    "c": 0.16529,
    "h": 271.2
  },
  "luminance": 0.06622
}

Semantic roles & 50–950 ramp

primary

#2F3DA4

secondary

#C0B66F

accent

#CD49DF

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2F3DA4

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

Preview Lab → · Contrast checker → · Palette generator →