#2840AD#2840AD

#2840AD is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.7% C 0.176 H 268.2°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#2840AD
RGB	rgb(40, 64, 173)
HSL	hsl(229, 62%, 42%)
HSV	hsv(229, 77%, 68%)
CMYK	cmyk(76.9%, 63%, 0%, 32.2%)
CIE-LAB	lab(32.11, 30.61, -60.72)
CIE-LCH	lch(32.11, 68.01, 296.75°)
OKLab	oklab(42.66% -0.0056 -0.1756)
OKLCH	oklch(42.66% 0.176 268.2)
XYZ	xyz(10.2487, 7.1339, 40.3639)
Luminance	0.0713 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2840AD #AD9528

analogous

#2883AD #2840AD #5328AD

triadic

#2840AD #AD2840 #40AD28

tetradic

#2840AD #AD2883 #AD9528 #28AD53

square

#2840AD #AD2883 #AD9528 #28AD53

split-complementary

#2840AD #AD5328 #83AD28

monochromatic

#111B4A #1D2E7B #2840AD #3F5AD3 #7185DE

Accessibility & contrast

On white

8.65

#2840AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#2840AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2840AD

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2840AD	#FFFFFF	#000000	##FFFFFF
##2840AD	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B1

Deuteranopia (green-blind)

#0045AB

Tritanopia (blue-blind)

#005C70

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #2840ad;
/* rgb */ color: rgb(40, 64, 173);
/* oklch */ color: oklch(42.7% 0.176 268.2);

Tailwind

colors: {
  custom: {
    50: '#7774c6',
    500: '#2840ad',
    950: '#000000',
  },
}

SCSS

$custom: #2840ad;
$custom-light: #7774c6;
$custom-dark: #000000;

JSON

{
  "hex": "#2840ad",
  "rgb": {
    "r": 40,
    "g": 64,
    "b": 173
  },
  "hsl": {
    "h": 229.173,
    "s": 62.441,
    "l": 41.765
  },
  "oklch": {
    "l": 0.42663,
    "c": 0.17567,
    "h": 268.2
  },
  "luminance": 0.07135
}

Semantic roles & 50–950 ramp

primary

#2840AD

secondary

#C5B56C

accent

#C842E6

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2840AD

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

Preview Lab → · Contrast checker → · Palette generator →