#2840A2#2840A2

#2840A2 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.7% C 0.161 H 268.0°. Best body text is #FFFFFF at 8.95:1 contrast (WCAG AA passes).

Color values

HEX	#2840A2
RGB	rgb(40, 64, 162)
HSL	hsl(228, 60%, 40%)
HSV	hsv(228, 75%, 64%)
CMYK	cmyk(75.3%, 60.5%, 0%, 36.5%)
CIE-LAB	lab(31.17, 26.47, -55.65)
CIE-LCH	lch(31.17, 61.63, 295.44°)
OKLab	oklab(41.68% -0.0055 -0.1607)
OKLCH	oklch(41.68% 0.161 268)
XYZ	xyz(9.2278, 6.7255, 34.9872)
Luminance	0.0673 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2840A2 #A28A28

analogous

#287DA2 #2840A2 #4D28A2

triadic

#2840A2 #A22840 #40A228

tetradic

#2840A2 #A2287D #A28A28 #28A24D

square

#2840A2 #A2287D #A28A28 #28A24D

split-complementary

#2840A2 #A24D28 #7DA228

monochromatic

#101940 #1C2D71 #2840A2 #3956CE #6A80DA

Accessibility & contrast

On white

8.95

#2840A2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#2840A2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2840A2

8.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2840A2	#FFFFFF	#000000	##FFFFFF
##2840A2	1.00	8.95	2.35	8.95
#FFFFFF	8.95	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA5

Deuteranopia (green-blind)

#0044A0

Tritanopia (blue-blind)

#00596A

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2840a2;
/* rgb */ color: rgb(40, 64, 162);
/* oklch */ color: oklch(41.7% 0.161 268.0);

Tailwind

colors: {
  custom: {
    50: '#7474be',
    500: '#2840a2',
    950: '#000000',
  },
}

SCSS

$custom: #2840a2;
$custom-light: #7474be;
$custom-dark: #000000;

JSON

{
  "hex": "#2840a2",
  "rgb": {
    "r": 40,
    "g": 64,
    "b": 162
  },
  "hsl": {
    "h": 228.197,
    "s": 60.396,
    "l": 39.608
  },
  "oklch": {
    "l": 0.41678,
    "c": 0.1608,
    "h": 268
  },
  "luminance": 0.06727
}

Semantic roles & 50–950 ramp

primary

#2840A2

secondary

#C1AF65

accent

#C444E4

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2840A2

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

Preview Lab → · Contrast checker → · Palette generator →