#28389D#28389D

#28389D is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.7% C 0.164 H 270.0°. Best body text is #FFFFFF at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#28389D
RGB	rgb(40, 56, 157)
HSL	hsl(232, 59%, 39%)
HSV	hsv(232, 75%, 62%)
CMYK	cmyk(74.5%, 64.3%, 0%, 38.4%)
CIE-LAB	lab(28.68, 29.91, -56.71)
CIE-LCH	lch(28.68, 64.11, 297.81°)
OKLab	oklab(39.7% 0.0001 -0.1639)
OKLCH	oklch(39.7% 0.164 270)
XYZ	xyz(8.3730, 5.7129, 32.5532)
Luminance	0.0571 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28389D #9D8D28

analogous

#28729D #28389D #52289D

triadic

#28389D #9D2838 #389D28

tetradic

#28389D #9D2872 #9D8D28 #289D52

square

#28389D #9D2872 #9D8D28 #289D52

split-complementary

#28389D #9D5228 #729D28

monochromatic

#0F153B #1C276C #28389D #364BCC #6777D8

Accessibility & contrast

On white

9.80

#28389D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#28389D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28389D

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28389D	#FFFFFF	#000000	##FFFFFF
##28389D	1.00	9.80	2.14	9.80
#FFFFFF	9.80	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A0

Deuteranopia (green-blind)

#003E9B

Tritanopia (blue-blind)

#005265

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #28389d;
/* rgb */ color: rgb(40, 56, 157);
/* oklch */ color: oklch(39.7% 0.164 270.0);

Tailwind

colors: {
  custom: {
    50: '#746ebb',
    500: '#28389d',
    950: '#000000',
  },
}

SCSS

$custom: #28389d;
$custom-light: #746ebb;
$custom-dark: #000000;

JSON

{
  "hex": "#28389d",
  "rgb": {
    "r": 40,
    "g": 56,
    "b": 157
  },
  "hsl": {
    "h": 231.795,
    "s": 59.391,
    "l": 38.627
  },
  "oklch": {
    "l": 0.39697,
    "c": 0.16388,
    "h": 270
  },
  "luminance": 0.05714
}

Semantic roles & 50–950 ramp

primary

#28389D

secondary

#BEB262

accent

#CD45E3

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #28389D

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

Preview Lab → · Contrast checker → · Palette generator →