#2F31B2#2F31B2

#2F31B2 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 41.0% C 0.197 H 272.8°. Best body text is #FFFFFF at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#2F31B2
RGB	rgb(47, 49, 178)
HSL	hsl(239, 58%, 44%)
HSV	hsv(239, 74%, 70%)
CMYK	cmyk(73.6%, 72.5%, 0%, 30.2%)
CIE-LAB	lab(29.45, 42.51, -68.07)
CIE-LCH	lch(29.45, 80.25, 301.99°)
OKLab	oklab(40.97% 0.0098 -0.1969)
OKLCH	oklch(40.97% 0.197 272.8)
XYZ	xyz(10.3038, 6.0143, 42.7287)
Luminance	0.0602 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F31B2 #B2B02F

analogous

#2F73B2 #2F31B2 #6F2FB2

triadic

#2F31B2 #B22F31 #31B22F

tetradic

#2F31B2 #B22F73 #B2B02F #2FB26F

square

#2F31B2 #B22F73 #B2B02F #2FB26F

split-complementary

#2F31B2 #B26F2F #73B22F

monochromatic

#151651 #222482 #2F31B2 #4E50D0 #7E80DD

Accessibility & contrast

On white

9.53

#2F31B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#2F31B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F31B2

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F31B2	#FFFFFF	#000000	##FFFFFF
##2F31B2	1.00	9.53	2.20	9.53
#FFFFFF	9.53	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CB6

Deuteranopia (green-blind)

#003FB0

Tritanopia (blue-blind)

#00566E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2f31b2;
/* rgb */ color: rgb(47, 49, 178);
/* oklch */ color: oklch(41.0% 0.197 272.8);

Tailwind

colors: {
  custom: {
    50: '#7c6aca',
    500: '#2f31b2',
    950: '#000000',
  },
}

SCSS

$custom: #2f31b2;
$custom-light: #7c6aca;
$custom-dark: #000000;

JSON

{
  "hex": "#2f31b2",
  "rgb": {
    "r": 47,
    "g": 49,
    "b": 178
  },
  "hsl": {
    "h": 239.084,
    "s": 58.222,
    "l": 44.118
  },
  "oklch": {
    "l": 0.40969,
    "c": 0.19717,
    "h": 272.8
  },
  "luminance": 0.06015
}

Semantic roles & 50–950 ramp

primary

#2F31B2

secondary

#C6C577

accent

#DF46E1

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2F31B2

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

Preview Lab → · Contrast checker → · Palette generator →