#27428B#27428B

#27428B is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.1% C 0.126 H 265.7°. Best body text is #FFFFFF at 9.38:1 contrast (WCAG AA passes).

Color values

HEX	#27428B
RGB	rgb(39, 66, 139)
HSL	hsl(224, 56%, 35%)
HSV	hsv(224, 72%, 55%)
CMYK	cmyk(71.9%, 52.5%, 0%, 45.5%)
CIE-LAB	lab(29.89, 16.12, -43.71)
CIE-LCH	lch(29.89, 46.59, 290.24°)
OKLab	oklab(40.14% -0.0094 -0.1256)
OKLCH	oklch(40.14% 0.126 265.7)
XYZ	xyz(7.4435, 6.1911, 25.2238)
Luminance	0.0619 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#27428B #8B7027

analogous

#27748B #27428B #3E278B

triadic

#27428B #8B2742 #428B27

tetradic

#27428B #8B2774 #8B7027 #278B3E

square

#27428B #8B2774 #8B7027 #278B3E

split-complementary

#27428B #8B3E27 #748B27

monochromatic

#0C152B #1A2B5B #27428B #3459BB #5B7BD1

Accessibility & contrast

On white

9.38

#27428B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#27428B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #27428B

9.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##27428B	#FFFFFF	#000000	##FFFFFF
##27428B	1.00	9.38	2.24	9.38
#FFFFFF	9.38	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#154B8E

Deuteranopia (green-blind)

#00428A

Tritanopia (blue-blind)

#005360

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #27428b;
/* rgb */ color: rgb(39, 66, 139);
/* oklch */ color: oklch(40.1% 0.126 265.7);

Tailwind

colors: {
  custom: {
    50: '#6e75ad',
    500: '#27428b',
    950: '#000000',
  },
}

SCSS

$custom: #27428b;
$custom-light: #6e75ad;
$custom-dark: #000000;

JSON

{
  "hex": "#27428b",
  "rgb": {
    "r": 39,
    "g": 66,
    "b": 139
  },
  "hsl": {
    "h": 223.8,
    "s": 56.18,
    "l": 34.902
  },
  "oklch": {
    "l": 0.40136,
    "c": 0.12594,
    "h": 265.7
  },
  "luminance": 0.06192
}

Semantic roles & 50–950 ramp

primary

#27428B

secondary

#B69D58

accent

#B748DF

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #27428B

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

Preview Lab → · Contrast checker → · Palette generator →