#2B31B2#2B31B2

#2B31B2 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.7% C 0.198 H 271.5°. Best body text is #FFFFFF at 9.61:1 contrast (WCAG AA passes).

Color values

HEX	#2B31B2
RGB	rgb(43, 49, 178)
HSL	hsl(237, 61%, 43%)
HSV	hsv(237, 76%, 70%)
CMYK	cmyk(75.8%, 72.5%, 0%, 30.2%)
CIE-LAB	lab(29.22, 42.14, -68.45)
CIE-LCH	lch(29.22, 80.38, 301.61°)
OKLab	oklab(40.74% 0.0053 -0.1981)
OKLCH	oklch(40.74% 0.198 271.5)
XYZ	xyz(10.1277, 5.9235, 42.7204)
Luminance	0.0592 (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

#2B31B2 #B2AC2B

analogous

#2B74B2 #2B31B2 #682BB2

triadic

#2B31B2 #B22B31 #31B22B

tetradic

#2B31B2 #B22B74 #B2AC2B #2BB268

square

#2B31B2 #B22B74 #B2AC2B #2BB268

split-complementary

#2B31B2 #B2682B #74B22B

monochromatic

#13164F #1F2381 #2B31B2 #484ED3 #797DDF

Accessibility & contrast

On white

9.61

#2B31B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#2B31B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B31B2

9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B31B2	#FFFFFF	#000000	##FFFFFF
##2B31B2	1.00	9.61	2.19	9.61
#FFFFFF	9.61	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB6

Deuteranopia (green-blind)

#003EB0

Tritanopia (blue-blind)

#00566E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2b31b2;
/* rgb */ color: rgb(43, 49, 178);
/* oklch */ color: oklch(40.7% 0.198 271.5);

Tailwind

colors: {
  custom: {
    50: '#7b6aca',
    500: '#2b31b2',
    950: '#000000',
  },
}

SCSS

$custom: #2b31b2;
$custom-light: #7b6aca;
$custom-dark: #000000;

JSON

{
  "hex": "#2b31b2",
  "rgb": {
    "r": 43,
    "g": 49,
    "b": 178
  },
  "hsl": {
    "h": 237.333,
    "s": 61.086,
    "l": 43.333
  },
  "oklch": {
    "l": 0.40743,
    "c": 0.19821,
    "h": 271.5
  },
  "luminance": 0.05925
}

Semantic roles & 50–950 ramp

primary

#2B31B2

secondary

#C7C372

accent

#DD44E4

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2B31B2

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

Preview Lab → · Contrast checker → · Palette generator →