#2840AA#2840AA

#2840AA is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.4% C 0.172 H 268.1°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#2840AA
RGB	rgb(40, 64, 170)
HSL	hsl(229, 62%, 41%)
HSV	hsv(229, 76%, 67%)
CMYK	cmyk(76.5%, 62.4%, 0%, 33.3%)
CIE-LAB	lab(31.85, 29.49, -59.36)
CIE-LCH	lch(31.85, 66.28, 296.42°)
OKLab	oklab(42.39% -0.0055 -0.1716)
OKLCH	oklch(42.39% 0.172 268.1)
XYZ	xyz(9.9617, 7.0191, 38.8522)
Luminance	0.0702 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2840AA #AA9228

analogous

#2881AA #2840AA #5128AA

triadic

#2840AA #AA2840 #40AA28

tetradic

#2840AA #AA2881 #AA9228 #28AA51

square

#2840AA #AA2881 #AA9228 #28AA51

split-complementary

#2840AA #AA5128 #81AA28

monochromatic

#111B47 #1C2D78 #2840AA #3E59D2 #6F84DD

Accessibility & contrast

On white

8.74

#2840AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#2840AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2840AA

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2840AA	#FFFFFF	#000000	##FFFFFF
##2840AA	1.00	8.74	2.40	8.74
#FFFFFF	8.74	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051AD

Deuteranopia (green-blind)

#0045A8

Tritanopia (blue-blind)

#005B6F

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2840aa;
/* rgb */ color: rgb(40, 64, 170);
/* oklch */ color: oklch(42.4% 0.172 268.1);

Tailwind

colors: {
  custom: {
    50: '#7674c4',
    500: '#2840aa',
    950: '#000000',
  },
}

SCSS

$custom: #2840aa;
$custom-light: #7674c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2840aa",
  "rgb": {
    "r": 40,
    "g": 64,
    "b": 170
  },
  "hsl": {
    "h": 228.923,
    "s": 61.905,
    "l": 41.176
  },
  "oklch": {
    "l": 0.42391,
    "c": 0.17165,
    "h": 268.1
  },
  "luminance": 0.0702
}

Semantic roles & 50–950 ramp

primary

#2840AA

secondary

#C4B36A

accent

#C743E5

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2840AA

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

Preview Lab → · Contrast checker → · Palette generator →