#2F31AC#2F31AC

#2F31AC is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.4% C 0.190 H 273.2°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#2F31AC
RGB	rgb(47, 49, 172)
HSL	hsl(239, 57%, 43%)
HSV	hsv(239, 73%, 67%)
CMYK	cmyk(72.7%, 71.5%, 0%, 32.5%)
CIE-LAB	lab(28.85, 40.47, -65.47)
CIE-LCH	lch(28.85, 76.97, 301.72°)
OKLab	oklab(40.36% 0.0107 -0.1894)
OKLCH	oklch(40.36% 0.19 273.2)
XYZ	xyz(9.7145, 5.7785, 39.6251)
Luminance	0.0578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.38

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F31AC #ACAA2F

analogous

#2F6FAC #2F31AC #6B2FAC

triadic

#2F31AC #AC2F31 #31AC2F

tetradic

#2F31AC #AC2F6F #ACAA2F #2FAC6B

square

#2F31AC #AC2F6F #ACAA2F #2FAC6B

split-complementary

#2F31AC #AC6B2F #6FAC2F

monochromatic

#15164C #22237C #2F31AC #4B4DCE #7B7CDB

Accessibility & contrast

On white

9.74

#2F31AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#2F31AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F31AC

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F31AC	#FFFFFF	#000000	##FFFFFF
##2F31AC	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB0

Deuteranopia (green-blind)

#003EAA

Tritanopia (blue-blind)

#00536B

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2f31ac;
/* rgb */ color: rgb(47, 49, 172);
/* oklch */ color: oklch(40.4% 0.190 273.2);

Tailwind

colors: {
  custom: {
    50: '#7b6ac6',
    500: '#2f31ac',
    950: '#000000',
  },
}

SCSS

$custom: #2f31ac;
$custom-light: #7b6ac6;
$custom-dark: #000000;

JSON

{
  "hex": "#2f31ac",
  "rgb": {
    "r": 47,
    "g": 49,
    "b": 172
  },
  "hsl": {
    "h": 239.04,
    "s": 57.078,
    "l": 42.941
  },
  "oklch": {
    "l": 0.40358,
    "c": 0.18966,
    "h": 273.2
  },
  "luminance": 0.0578
}

Semantic roles & 50–950 ramp

primary

#2F31AC

secondary

#C3C274

accent

#DE47E0

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2F31AC

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

Preview Lab → · Contrast checker → · Palette generator →