#2830AB#2830AB

#2830AB is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.7% C 0.191 H 271.0°. Best body text is #FFFFFF at 10.00:1 contrast (WCAG AA passes).

Color values

HEX	#2830AB
RGB	rgb(40, 48, 171)
HSL	hsl(236, 62%, 41%)
HSV	hsv(236, 77%, 67%)
CMYK	cmyk(76.6%, 71.9%, 0%, 32.9%)
CIE-LAB	lab(28.13, 40.04, -66.07)
CIE-LCH	lch(28.13, 77.26, 301.22°)
OKLab	oklab(39.7% 0.0035 -0.1913)
OKLCH	oklch(39.7% 0.191 271)
XYZ	xyz(9.2802, 5.5043, 39.0935)
Luminance	0.0551 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2830AB #ABA328

analogous

#2872AB #2830AB #6228AB

triadic

#2830AB #AB2830 #30AB28

tetradic

#2830AB #AB2872 #ABA328 #28AB62

square

#2830AB #AB2872 #ABA328 #28AB62

split-complementary

#2830AB #AB6228 #72AB28

monochromatic

#111448 #1C2279 #2830AB #3E47D2 #7077DE

Accessibility & contrast

On white

10.00

#2830AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#2830AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2830AB

10.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2830AB	#FFFFFF	#000000	##FFFFFF
##2830AB	1.00	10.00	2.10	10.00
#FFFFFF	10.00	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049AF

Deuteranopia (green-blind)

#003CA9

Tritanopia (blue-blind)

#00536A

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2830ab;
/* rgb */ color: rgb(40, 48, 171);
/* oklch */ color: oklch(39.7% 0.191 271.0);

Tailwind

colors: {
  custom: {
    50: '#7869c5',
    500: '#2830ab',
    950: '#000000',
  },
}

SCSS

$custom: #2830ab;
$custom-light: #7869c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2830ab",
  "rgb": {
    "r": 40,
    "g": 48,
    "b": 171
  },
  "hsl": {
    "h": 236.336,
    "s": 62.085,
    "l": 41.373
  },
  "oklch": {
    "l": 0.39702,
    "c": 0.1913,
    "h": 271
  },
  "luminance": 0.05505
}

Semantic roles & 50–950 ramp

primary

#2830AB

secondary

#C4BF6A

accent

#DB43E5

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0A0613

muted

#7C7A82

Preview Lab

Preview with #2830AB

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

Preview Lab → · Contrast checker → · Palette generator →