#2D31A3#2D31A3

#2D31A3 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.3% C 0.179 H 273.1°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#2D31A3
RGB	rgb(45, 49, 163)
HSL	hsl(238, 57%, 41%)
HSV	hsv(238, 72%, 64%)
CMYK	cmyk(72.4%, 69.9%, 0%, 36.1%)
CIE-LAB	lab(27.84, 37.14, -61.71)
CIE-LCH	lch(27.84, 72.02, 301.04°)
OKLab	oklab(39.33% 0.0096 -0.1784)
OKLCH	oklch(39.33% 0.179 273.1)
XYZ	xyz(8.7891, 5.3980, 35.2219)
Luminance	0.0540 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D31A3 #A39F2D

analogous

#2D6CA3 #2D31A3 #642DA3

triadic

#2D31A3 #A32D31 #31A32D

tetradic

#2D31A3 #A32D6C #A39F2D #2DA364

square

#2D31A3 #A32D6C #A39F2D #2DA364

split-complementary

#2D31A3 #A3642D #6CA32D

monochromatic

#131443 #202373 #2D31A3 #4247CB #7276D8

Accessibility & contrast

On white

10.10

#2D31A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#2D31A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D31A3

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D31A3	#FFFFFF	#000000	##FFFFFF
##2D31A3	1.00	10.10	2.08	10.10
#FFFFFF	10.10	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047A6

Deuteranopia (green-blind)

#003CA1

Tritanopia (blue-blind)

#005066

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2d31a3;
/* rgb */ color: rgb(45, 49, 163);
/* oklch */ color: oklch(39.3% 0.179 273.1);

Tailwind

colors: {
  custom: {
    50: '#786abf',
    500: '#2d31a3',
    950: '#000000',
  },
}

SCSS

$custom: #2d31a3;
$custom-light: #786abf;
$custom-dark: #000000;

JSON

{
  "hex": "#2d31a3",
  "rgb": {
    "r": 45,
    "g": 49,
    "b": 163
  },
  "hsl": {
    "h": 237.966,
    "s": 56.731,
    "l": 40.784
  },
  "oklch": {
    "l": 0.39334,
    "c": 0.17868,
    "h": 273.1
  },
  "luminance": 0.05399
}

Semantic roles & 50–950 ramp

primary

#2D31A3

secondary

#C0BD6C

accent

#DB48E0

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2D31A3

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

Preview Lab → · Contrast checker → · Palette generator →