#2730A9#2730A9

#2730A9 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.4% C 0.189 H 270.8°. Best body text is #FFFFFF at 10.09:1 contrast (WCAG AA passes).

Color values

HEX	#2730A9
RGB	rgb(39, 48, 169)
HSL	hsl(236, 63%, 41%)
HSV	hsv(236, 77%, 66%)
CMYK	cmyk(76.9%, 71.6%, 0%, 33.7%)
CIE-LAB	lab(27.87, 39.25, -65.29)
CIE-LCH	lch(27.87, 76.18, 301.01°)
OKLab	oklab(39.44% 0.0027 -0.189)
OKLCH	oklch(39.44% 0.189 270.8)
XYZ	xyz(9.0526, 5.4088, 38.0953)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2730A9 #A9A027

analogous

#2771A9 #2730A9 #5F27A9

triadic

#2730A9 #A92730 #30A927

tetradic

#2730A9 #A92771 #A9A027 #27A95F

square

#2730A9 #A92771 #A9A027 #27A95F

split-complementary

#2730A9 #A95F27 #71A927

monochromatic

#101446 #1C2277 #2730A9 #3B46D2 #6D75DD

Accessibility & contrast

On white

10.09

#2730A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#2730A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2730A9

10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2730A9	#FFFFFF	#000000	##FFFFFF
##2730A9	1.00	10.09	2.08	10.09
#FFFFFF	10.09	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048AD

Deuteranopia (green-blind)

#003BA7

Tritanopia (blue-blind)

#005269

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2730a9;
/* rgb */ color: rgb(39, 48, 169);
/* oklch */ color: oklch(39.4% 0.189 270.8);

Tailwind

colors: {
  custom: {
    50: '#7769c4',
    500: '#2730a9',
    950: '#000000',
  },
}

SCSS

$custom: #2730a9;
$custom-light: #7769c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2730a9",
  "rgb": {
    "r": 39,
    "g": 48,
    "b": 169
  },
  "hsl": {
    "h": 235.846,
    "s": 62.5,
    "l": 40.784
  },
  "oklch": {
    "l": 0.39443,
    "c": 0.18904,
    "h": 270.8
  },
  "luminance": 0.0541
}

Semantic roles & 50–950 ramp

primary

#2730A9

secondary

#C4BE68

accent

#DA42E6

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0A0613

muted

#7C7A82

Preview Lab

Preview with #2730A9

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

Preview Lab → · Contrast checker → · Palette generator →