#2730AA#2730AA

#2730AA is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.5% C 0.190 H 270.8°. Best body text is #FFFFFF at 10.05:1 contrast (WCAG AA passes).

Color values

HEX	#2730AA
RGB	rgb(39, 48, 170)
HSL	hsl(236, 63%, 41%)
HSV	hsv(236, 77%, 67%)
CMYK	cmyk(77.1%, 71.8%, 0%, 33.3%)
CIE-LAB	lab(27.97, 39.60, -65.73)
CIE-LCH	lch(27.97, 76.73, 301.07°)
OKLab	oklab(39.55% 0.0026 -0.1903)
OKLCH	oklch(39.55% 0.19 270.8)
XYZ	xyz(9.1469, 5.4465, 38.5916)
Luminance	0.0545 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2730AA #AAA127

analogous

#2771AA #2730AA #5F27AA

triadic

#2730AA #AA2730 #30AA27

tetradic

#2730AA #AA2771 #AAA127 #27AA5F

square

#2730AA #AA2771 #AAA127 #27AA5F

split-complementary

#2730AA #AA5F27 #71AA27

monochromatic

#101446 #1C2278 #2730AA #3C46D2 #6E75DE

Accessibility & contrast

On white

10.05

#2730AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#2730AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2730AA

10.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2730AA	#FFFFFF	#000000	##FFFFFF
##2730AA	1.00	10.05	2.09	10.05
#FFFFFF	10.05	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048AE

Deuteranopia (green-blind)

#003CA8

Tritanopia (blue-blind)

#00526A

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2730aa;
/* rgb */ color: rgb(39, 48, 170);
/* oklch */ color: oklch(39.5% 0.190 270.8);

Tailwind

colors: {
  custom: {
    50: '#7769c4',
    500: '#2730aa',
    950: '#000000',
  },
}

SCSS

$custom: #2730aa;
$custom-light: #7769c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2730aa",
  "rgb": {
    "r": 39,
    "g": 48,
    "b": 170
  },
  "hsl": {
    "h": 235.878,
    "s": 62.679,
    "l": 40.98
  },
  "oklch": {
    "l": 0.39546,
    "c": 0.19031,
    "h": 270.8
  },
  "luminance": 0.05448
}

Semantic roles & 50–950 ramp

primary

#2730AA

secondary

#C4BE69

accent

#DA42E6

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0A0613

muted

#7C7A82

Preview Lab

Preview with #2730AA

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

Preview Lab → · Contrast checker → · Palette generator →