#2B31AF#2B31AF

#2B31AF is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.4% C 0.194 H 271.7°. Best body text is #FFFFFF at 9.72:1 contrast (WCAG AA passes).

Color values

HEX	#2B31AF
RGB	rgb(43, 49, 175)
HSL	hsl(237, 61%, 43%)
HSV	hsv(237, 75%, 69%)
CMYK	cmyk(75.4%, 72%, 0%, 31.4%)
CIE-LAB	lab(28.91, 41.10, -67.16)
CIE-LCH	lch(28.91, 78.74, 301.47°)
OKLab	oklab(40.43% 0.0057 -0.1944)
OKLCH	oklch(40.43% 0.194 271.7)
XYZ	xyz(9.8298, 5.8043, 41.1514)
Luminance	0.0580 (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

#2B31AF #AFA92B

analogous

#2B73AF #2B31AF #672BAF

triadic

#2B31AF #AF2B31 #31AF2B

tetradic

#2B31AF #AF2B73 #AFA92B #2BAF67

square

#2B31AF #AF2B73 #AFA92B #2BAF67

split-complementary

#2B31AF #AF672B #73AF2B

monochromatic

#13154D #1F237E #2B31AF #464CD1 #777CDE

Accessibility & contrast

On white

9.72

#2B31AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#2B31AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B31AF

9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B31AF	#FFFFFF	#000000	##FFFFFF
##2B31AF	1.00	9.72	2.16	9.72
#FFFFFF	9.72	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB3

Deuteranopia (green-blind)

#003EAD

Tritanopia (blue-blind)

#00556D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2b31af;
/* rgb */ color: rgb(43, 49, 175);
/* oklch */ color: oklch(40.4% 0.194 271.7);

Tailwind

colors: {
  custom: {
    50: '#7a6ac8',
    500: '#2b31af',
    950: '#000000',
  },
}

SCSS

$custom: #2b31af;
$custom-light: #7a6ac8;
$custom-dark: #000000;

JSON

{
  "hex": "#2b31af",
  "rgb": {
    "r": 43,
    "g": 49,
    "b": 175
  },
  "hsl": {
    "h": 237.273,
    "s": 60.55,
    "l": 42.745
  },
  "oklch": {
    "l": 0.40433,
    "c": 0.19447,
    "h": 271.7
  },
  "luminance": 0.05805
}

Semantic roles & 50–950 ramp

primary

#2B31AF

secondary

#C5C170

accent

#DC44E4

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2B31AF

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

Preview Lab → · Contrast checker → · Palette generator →