#2B31B3#2B31B3

#2B31B3 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.8% C 0.199 H 271.5°. Best body text is #FFFFFF at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#2B31B3
RGB	rgb(43, 49, 179)
HSL	hsl(237, 61%, 44%)
HSV	hsv(237, 76%, 70%)
CMYK	cmyk(76%, 72.6%, 0%, 29.8%)
CIE-LAB	lab(29.32, 42.48, -68.88)
CIE-LCH	lch(29.32, 80.93, 301.66°)
OKLab	oklab(40.85% 0.0051 -0.1994)
OKLCH	oklch(40.85% 0.199 271.5)
XYZ	xyz(10.2285, 5.9638, 43.2511)
Luminance	0.0597 (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

#2B31B3 #B3AD2B

analogous

#2B75B3 #2B31B3 #692BB3

triadic

#2B31B3 #B32B31 #31B32B

tetradic

#2B31B3 #B32B75 #B3AD2B #2BB369

square

#2B31B3 #B32B75 #B3AD2B #2BB369

split-complementary

#2B31B3 #B3692B #75B32B

monochromatic

#131650 #1F2382 #2B31B3 #484ED3 #797EDF

Accessibility & contrast

On white

9.58

#2B31B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#2B31B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B31B3

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B31B3	#FFFFFF	#000000	##FFFFFF
##2B31B3	1.00	9.58	2.19	9.58
#FFFFFF	9.58	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CB7

Deuteranopia (green-blind)

#003EB1

Tritanopia (blue-blind)

#00566F

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2b31b3;
/* rgb */ color: rgb(43, 49, 179);
/* oklch */ color: oklch(40.8% 0.199 271.5);

Tailwind

colors: {
  custom: {
    50: '#7b6acb',
    500: '#2b31b3',
    950: '#000000',
  },
}

SCSS

$custom: #2b31b3;
$custom-light: #7b6acb;
$custom-dark: #000000;

JSON

{
  "hex": "#2b31b3",
  "rgb": {
    "r": 43,
    "g": 49,
    "b": 179
  },
  "hsl": {
    "h": 237.353,
    "s": 61.261,
    "l": 43.529
  },
  "oklch": {
    "l": 0.40847,
    "c": 0.19946,
    "h": 271.5
  },
  "luminance": 0.05965
}

Semantic roles & 50–950 ramp

primary

#2B31B3

secondary

#C7C373

accent

#DD43E4

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2B31B3

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

Preview Lab → · Contrast checker → · Palette generator →