#2A31AC#2A31AC

#2A31AC is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.1% C 0.191 H 271.5°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#2A31AC
RGB	rgb(42, 49, 172)
HSL	hsl(237, 61%, 42%)
HSV	hsv(237, 76%, 67%)
CMYK	cmyk(75.6%, 71.5%, 0%, 32.5%)
CIE-LAB	lab(28.55, 39.97, -65.96)
CIE-LCH	lch(28.55, 77.13, 301.22°)
OKLab	oklab(40.07% 0.005 -0.1909)
OKLCH	oklch(40.07% 0.191 271.5)
XYZ	xyz(9.4970, 5.6664, 39.6149)
Luminance	0.0567 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A31AC #ACA52A

analogous

#2A72AC #2A31AC #642AAC

triadic

#2A31AC #AC2A31 #31AC2A

tetradic

#2A31AC #AC2A72 #ACA52A #2AAC64

square

#2A31AC #AC2A72 #ACA52A #2AAC64

split-complementary

#2A31AC #AC642A #72AC2A

monochromatic

#12154A #1E237B #2A31AC #424AD1 #7379DD

Accessibility & contrast

On white

9.84

#2A31AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#2A31AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A31AC

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A31AC	#FFFFFF	#000000	##FFFFFF
##2A31AC	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB0

Deuteranopia (green-blind)

#003DAA

Tritanopia (blue-blind)

#00546B

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2a31ac;
/* rgb */ color: rgb(42, 49, 172);
/* oklch */ color: oklch(40.1% 0.191 271.5);

Tailwind

colors: {
  custom: {
    50: '#796ac6',
    500: '#2a31ac',
    950: '#000000',
  },
}

SCSS

$custom: #2a31ac;
$custom-light: #796ac6;
$custom-dark: #000000;

JSON

{
  "hex": "#2a31ac",
  "rgb": {
    "r": 42,
    "g": 49,
    "b": 172
  },
  "hsl": {
    "h": 236.769,
    "s": 60.748,
    "l": 41.961
  },
  "oklch": {
    "l": 0.4007,
    "c": 0.19097,
    "h": 271.5
  },
  "luminance": 0.05667
}

Semantic roles & 50–950 ramp

primary

#2A31AC

secondary

#C4C06D

accent

#DB44E4

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2A31AC

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

Preview Lab → · Contrast checker → · Palette generator →