#2831A0#2831A0

#2831A0 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.7% C 0.176 H 271.4°. Best body text is #FFFFFF at 10.31:1 contrast (WCAG AA passes).

Color values

HEX	#2831A0
RGB	rgb(40, 49, 160)
HSL	hsl(236, 60%, 39%)
HSV	hsv(236, 75%, 63%)
CMYK	cmyk(75%, 69.4%, 0%, 37.3%)
CIE-LAB	lab(27.26, 35.53, -60.86)
CIE-LCH	lch(27.26, 70.47, 300.28°)
OKLab	oklab(38.75% 0.0043 -0.1761)
OKLCH	oklch(38.75% 0.176 271.4)
XYZ	xyz(8.3164, 5.1849, 33.8134)
Luminance	0.0519 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2831A0 #A09728

analogous

#286DA0 #2831A0 #5B28A0

triadic

#2831A0 #A02831 #31A028

tetradic

#2831A0 #A0286D #A09728 #28A05B

square

#2831A0 #A0286D #A09728 #28A05B

split-complementary

#2831A0 #A05B28 #6DA028

monochromatic

#10133E #1C226F #2831A0 #3843CD #6971D9

Accessibility & contrast

On white

10.31

#2831A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#2831A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2831A0

10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2831A0	#FFFFFF	#000000	##FFFFFF
##2831A0	1.00	10.31	2.04	10.31
#FFFFFF	10.31	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A3

Deuteranopia (green-blind)

#003B9E

Tritanopia (blue-blind)

#004F64

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2831a0;
/* rgb */ color: rgb(40, 49, 160);
/* oklch */ color: oklch(38.7% 0.176 271.4);

Tailwind

colors: {
  custom: {
    50: '#7569bd',
    500: '#2831a0',
    950: '#000000',
  },
}

SCSS

$custom: #2831a0;
$custom-light: #7569bd;
$custom-dark: #000000;

JSON

{
  "hex": "#2831a0",
  "rgb": {
    "r": 40,
    "g": 49,
    "b": 160
  },
  "hsl": {
    "h": 235.5,
    "s": 60,
    "l": 39.216
  },
  "oklch": {
    "l": 0.38745,
    "c": 0.17612,
    "h": 271.4
  },
  "luminance": 0.05186
}

Semantic roles & 50–950 ramp

primary

#2831A0

secondary

#C0B964

accent

#D745E3

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2831A0

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

Preview Lab → · Contrast checker → · Palette generator →