#2830A4#2830A4

#2830A4 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 39.0% C 0.182 H 271.4°. Best body text is #FFFFFF at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#2830A4
RGB	rgb(40, 48, 164)
HSL	hsl(236, 61%, 40%)
HSV	hsv(236, 76%, 64%)
CMYK	cmyk(75.6%, 70.7%, 0%, 35.7%)
CIE-LAB	lab(27.42, 37.58, -63.01)
CIE-LCH	lch(27.42, 73.37, 300.81°)
OKLab	oklab(38.98% 0.0044 -0.1824)
OKLCH	oklch(38.98% 0.182 271.4)
XYZ	xyz(8.6306, 5.2444, 35.6722)
Luminance	0.0524 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2830A4 #A49C28

analogous

#286EA4 #2830A4 #5E28A4

triadic

#2830A4 #A42830 #30A428

tetradic

#2830A4 #A4286E #A49C28 #28A45E

square

#2830A4 #A4286E #A49C28 #28A45E

split-complementary

#2830A4 #A45E28 #6EA428

monochromatic

#101342 #1C2273 #2830A4 #3A44CF #6B73DB

Accessibility & contrast

On white

10.25

#2830A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#2830A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2830A4

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2830A4	#FFFFFF	#000000	##FFFFFF
##2830A4	1.00	10.25	2.05	10.25
#FFFFFF	10.25	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047A8

Deuteranopia (green-blind)

#003BA2

Tritanopia (blue-blind)

#005066

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2830a4;
/* rgb */ color: rgb(40, 48, 164);
/* oklch */ color: oklch(39.0% 0.182 271.4);

Tailwind

colors: {
  custom: {
    50: '#7669c0',
    500: '#2830a4',
    950: '#000000',
  },
}

SCSS

$custom: #2830a4;
$custom-light: #7669c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2830a4",
  "rgb": {
    "r": 40,
    "g": 48,
    "b": 164
  },
  "hsl": {
    "h": 236.129,
    "s": 60.784,
    "l": 40
  },
  "oklch": {
    "l": 0.38983,
    "c": 0.1824,
    "h": 271.4
  },
  "luminance": 0.05245
}

Semantic roles & 50–950 ramp

primary

#2830A4

secondary

#C1BC66

accent

#DA44E4

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2830A4

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

Preview Lab → · Contrast checker → · Palette generator →