#2831AA#2831AA

#2831AA is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.8% C 0.189 H 270.9°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#2831AA
RGB	rgb(40, 49, 170)
HSL	hsl(236, 62%, 41%)
HSV	hsv(236, 76%, 67%)
CMYK	cmyk(76.5%, 71.2%, 0%, 33.3%)
CIE-LAB	lab(28.24, 39.08, -65.27)
CIE-LCH	lch(28.24, 76.08, 300.91°)
OKLab	oklab(39.76% 0.0031 -0.1889)
OKLCH	oklch(39.76% 0.189 270.9)
XYZ	xyz(9.2266, 5.5490, 38.6072)
Luminance	0.0555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2831AA #AAA128

analogous

#2872AA #2831AA #6028AA

triadic

#2831AA #AA2831 #31AA28

tetradic

#2831AA #AA2872 #AAA128 #28AA60

square

#2831AA #AA2872 #AAA128 #28AA60

split-complementary

#2831AA #AA6028 #72AA28

monochromatic

#111447 #1C2378 #2831AA #3E48D2 #6F77DD

Accessibility & contrast

On white

9.95

#2831AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#2831AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2831AA

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2831AA	#FFFFFF	#000000	##FFFFFF
##2831AA	1.00	9.95	2.11	9.95
#FFFFFF	9.95	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049AE

Deuteranopia (green-blind)

#003CA8

Tritanopia (blue-blind)

#00536A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2831aa;
/* rgb */ color: rgb(40, 49, 170);
/* oklch */ color: oklch(39.8% 0.189 270.9);

Tailwind

colors: {
  custom: {
    50: '#786ac4',
    500: '#2831aa',
    950: '#000000',
  },
}

SCSS

$custom: #2831aa;
$custom-light: #786ac4;
$custom-dark: #000000;

JSON

{
  "hex": "#2831aa",
  "rgb": {
    "r": 40,
    "g": 49,
    "b": 170
  },
  "hsl": {
    "h": 235.846,
    "s": 61.905,
    "l": 41.176
  },
  "oklch": {
    "l": 0.39758,
    "c": 0.18897,
    "h": 270.9
  },
  "luminance": 0.0555
}

Semantic roles & 50–950 ramp

primary

#2831AA

secondary

#C4BE6A

accent

#DA43E5

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0A0613

muted

#7C7A82

Preview Lab

Preview with #2831AA

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

Preview Lab → · Contrast checker → · Palette generator →