#2747B0#2747B0

#2747B0 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.2% C 0.171 H 266.3°. Best body text is #FFFFFF at 8.03:1 contrast (WCAG AA passes).

Color values

HEX	#2747B0
RGB	rgb(39, 71, 176)
HSL	hsl(226, 64%, 42%)
HSV	hsv(226, 78%, 69%)
CMYK	cmyk(77.8%, 59.7%, 0%, 31%)
CIE-LAB	lab(34.13, 27.02, -59.21)
CIE-LCH	lch(34.13, 65.08, 294.53°)
OKLab	oklab(44.23% -0.011 -0.1711)
OKLCH	oklch(44.23% 0.171 266.3)
XYZ	xyz(10.9237, 8.0712, 42.0481)
Luminance	0.0807 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2747B0 #B09027

analogous

#278CB0 #2747B0 #4B27B0

triadic

#2747B0 #B02747 #47B027

tetradic

#2747B0 #B0278C #B09027 #27B04B

square

#2747B0 #B0278C #B09027 #27B04B

split-complementary

#2747B0 #B04B27 #8CB027

monochromatic

#111F4C #1C337E #2747B0 #4062D5 #728BE0

Accessibility & contrast

On white

8.03

#2747B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#2747B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2747B0

8.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2747B0	#FFFFFF	#000000	##FFFFFF
##2747B0	1.00	8.03	2.61	8.03
#FFFFFF	8.03	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B4

Deuteranopia (green-blind)

#004AAE

Tritanopia (blue-blind)

#006274

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #2747b0;
/* rgb */ color: rgb(39, 71, 176);
/* oklch */ color: oklch(44.2% 0.171 266.3);

Tailwind

colors: {
  custom: {
    50: '#7779c8',
    500: '#2747b0',
    950: '#000000',
  },
}

SCSS

$custom: #2747b0;
$custom-light: #7779c8;
$custom-dark: #000000;

JSON

{
  "hex": "#2747b0",
  "rgb": {
    "r": 39,
    "g": 71,
    "b": 176
  },
  "hsl": {
    "h": 225.985,
    "s": 63.721,
    "l": 42.157
  },
  "oklch": {
    "l": 0.4423,
    "c": 0.17142,
    "h": 266.3
  },
  "luminance": 0.08072
}

Semantic roles & 50–950 ramp

primary

#2747B0

secondary

#C7B26C

accent

#C041E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #2747B0

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

Preview Lab → · Contrast checker → · Palette generator →