#2728BA#2728BA

#2728BA is a dark, highly saturated blue. Relative luminance 0.055; OKLCH L 40.1% C 0.217 H 270.8°. Best body text is #FFFFFF at 10.01:1 contrast (WCAG AA passes).

Color values

HEX	#2728BA
RGB	rgb(39, 40, 186)
HSL	hsl(240, 65%, 44%)
HSV	hsv(240, 79%, 73%)
CMYK	cmyk(79%, 78.5%, 0%, 27.1%)
CIE-LAB	lab(28.10, 49.51, -75.07)
CIE-LCH	lch(28.10, 89.93, 303.40°)
OKLab	oklab(40.14% 0.003 -0.2174)
OKLCH	oklch(40.14% 0.217 270.8)
XYZ	xyz(10.4554, 5.4929, 46.9541)
Luminance	0.0549 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2728BA #BAB927

analogous

#2772BA #2728BA #7027BA

triadic

#2728BA #BA2728 #28BA27

tetradic

#2728BA #BA2772 #BAB927 #27BA70

square

#2728BA #BA2772 #BAB927 #27BA70

split-complementary

#2728BA #BA7027 #72BA27

monochromatic

#121255 #1C1D87 #2728BA #4647D8 #7979E3

Accessibility & contrast

On white

10.01

#2728BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#2728BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2728BA

10.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2728BA	#FFFFFF	#000000	##FFFFFF
##2728BA	1.00	10.01	2.10	10.01
#FFFFFF	10.01	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004ABE

Deuteranopia (green-blind)

#003BB7

Tritanopia (blue-blind)

#005571

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2728ba;
/* rgb */ color: rgb(39, 40, 186);
/* oklch */ color: oklch(40.1% 0.217 270.8);

Tailwind

colors: {
  custom: {
    50: '#7c65d0',
    500: '#2728ba',
    950: '#000000',
  },
}

SCSS

$custom: #2728ba;
$custom-light: #7c65d0;
$custom-dark: #000000;

JSON

{
  "hex": "#2728ba",
  "rgb": {
    "r": 39,
    "g": 40,
    "b": 186
  },
  "hsl": {
    "h": 239.592,
    "s": 65.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.40144,
    "c": 0.2174,
    "h": 270.8
  },
  "luminance": 0.05494
}

Semantic roles & 50–950 ramp

primary

#2728BA

secondary

#CBCA72

accent

#E740E8

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0614

muted

#7D7A83

Preview Lab

Preview with #2728BA

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

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