#2831A2#2831A2

#2831A2 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.9% C 0.179 H 271.3°. Best body text is #FFFFFF at 10.24:1 contrast (WCAG AA passes).

Color values

HEX	#2831A2
RGB	rgb(40, 49, 162)
HSL	hsl(236, 60%, 40%)
HSV	hsv(236, 75%, 64%)
CMYK	cmyk(75.3%, 69.8%, 0%, 36.5%)
CIE-LAB	lab(27.45, 36.25, -61.75)
CIE-LCH	lch(27.45, 71.60, 300.41°)
OKLab	oklab(38.95% 0.0041 -0.1787)
OKLCH	oklch(38.95% 0.179 271.3)
XYZ	xyz(8.4928, 5.2555, 34.7422)
Luminance	0.0526 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2831A2 #A29928

analogous

#286EA2 #2831A2 #5C28A2

triadic

#2831A2 #A22831 #31A228

tetradic

#2831A2 #A2286E #A29928 #28A25C

square

#2831A2 #A2286E #A29928 #28A25C

split-complementary

#2831A2 #A25C28 #6EA228

monochromatic

#101340 #1C2271 #2831A2 #3944CE #6A72DA

Accessibility & contrast

On white

10.24

#2831A2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#2831A2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2831A2

10.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2831A2	#FFFFFF	#000000	##FFFFFF
##2831A2	1.00	10.24	2.05	10.24
#FFFFFF	10.24	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047A5

Deuteranopia (green-blind)

#003BA0

Tritanopia (blue-blind)

#005065

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2831a2;
/* rgb */ color: rgb(40, 49, 162);
/* oklch */ color: oklch(38.9% 0.179 271.3);

Tailwind

colors: {
  custom: {
    50: '#7669bf',
    500: '#2831a2',
    950: '#000000',
  },
}

SCSS

$custom: #2831a2;
$custom-light: #7669bf;
$custom-dark: #000000;

JSON

{
  "hex": "#2831a2",
  "rgb": {
    "r": 40,
    "g": 49,
    "b": 162
  },
  "hsl": {
    "h": 235.574,
    "s": 60.396,
    "l": 39.608
  },
  "oklch": {
    "l": 0.38945,
    "c": 0.17872,
    "h": 271.3
  },
  "luminance": 0.05256
}

Semantic roles & 50–950 ramp

primary

#2831A2

secondary

#C1BA65

accent

#D844E4

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2831A2

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

Preview Lab → · Contrast checker → · Palette generator →