#2730A8#2730A8

#2730A8 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.3% C 0.188 H 270.9°. Best body text is #FFFFFF at 10.12:1 contrast (WCAG AA passes).

Color values

HEX	#2730A8
RGB	rgb(39, 48, 168)
HSL	hsl(236, 62%, 41%)
HSV	hsv(236, 77%, 66%)
CMYK	cmyk(76.8%, 71.4%, 0%, 34.1%)
CIE-LAB	lab(27.77, 38.90, -64.86)
CIE-LCH	lch(27.77, 75.63, 300.95°)
OKLab	oklab(39.34% 0.0028 -0.1877)
OKLCH	oklch(39.34% 0.188 270.9)
XYZ	xyz(8.9591, 5.3714, 37.6028)
Luminance	0.0537 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2730A8 #A89F27

analogous

#2770A8 #2730A8 #5E27A8

triadic

#2730A8 #A82730 #30A827

tetradic

#2730A8 #A82770 #A89F27 #27A85E

square

#2730A8 #A82770 #A89F27 #27A85E

split-complementary

#2730A8 #A85E27 #70A827

monochromatic

#101445 #1B2276 #2730A8 #3B45D1 #6C74DD

Accessibility & contrast

On white

10.12

#2730A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#2730A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2730A8

10.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2730A8	#FFFFFF	#000000	##FFFFFF
##2730A8	1.00	10.12	2.07	10.12
#FFFFFF	10.12	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048AC

Deuteranopia (green-blind)

#003BA6

Tritanopia (blue-blind)

#005268

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2730a8;
/* rgb */ color: rgb(39, 48, 168);
/* oklch */ color: oklch(39.3% 0.188 270.9);

Tailwind

colors: {
  custom: {
    50: '#7769c3',
    500: '#2730a8',
    950: '#000000',
  },
}

SCSS

$custom: #2730a8;
$custom-light: #7769c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2730a8",
  "rgb": {
    "r": 39,
    "g": 48,
    "b": 168
  },
  "hsl": {
    "h": 235.814,
    "s": 62.319,
    "l": 40.588
  },
  "oklch": {
    "l": 0.39339,
    "c": 0.18777,
    "h": 270.9
  },
  "luminance": 0.05372
}

Semantic roles & 50–950 ramp

primary

#2730A8

secondary

#C3BD67

accent

#DA42E5

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0613

muted

#7C7A82

Preview Lab

Preview with #2730A8

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

Preview Lab → · Contrast checker → · Palette generator →