#28389F#28389F

#28389F is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.9% C 0.167 H 270.0°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#28389F
RGB	rgb(40, 56, 159)
HSL	hsl(232, 60%, 39%)
HSV	hsv(232, 75%, 62%)
CMYK	cmyk(74.8%, 64.8%, 0%, 37.6%)
CIE-LAB	lab(28.86, 30.65, -57.63)
CIE-LCH	lch(28.86, 65.27, 298.01°)
OKLab	oklab(39.88% 0.0001 -0.1666)
OKLCH	oklch(39.88% 0.167 270)
XYZ	xyz(8.5451, 5.7818, 33.4598)
Luminance	0.0578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28389F #9F8F28

analogous

#28749F #28389F #54289F

triadic

#28389F #9F2838 #389F28

tetradic

#28389F #9F2874 #9F8F28 #289F54

square

#28389F #9F2874 #9F8F28 #289F54

split-complementary

#28389F #9F5428 #749F28

monochromatic

#0F163D #1C276E #28389F #374BCD #6877D9

Accessibility & contrast

On white

9.74

#28389F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#28389F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28389F

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28389F	#FFFFFF	#000000	##FFFFFF
##28389F	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA2

Deuteranopia (green-blind)

#003F9D

Tritanopia (blue-blind)

#005366

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #28389f;
/* rgb */ color: rgb(40, 56, 159);
/* oklch */ color: oklch(39.9% 0.167 270.0);

Tailwind

colors: {
  custom: {
    50: '#746ebc',
    500: '#28389f',
    950: '#000000',
  },
}

SCSS

$custom: #28389f;
$custom-light: #746ebc;
$custom-dark: #000000;

JSON

{
  "hex": "#28389f",
  "rgb": {
    "r": 40,
    "g": 56,
    "b": 159
  },
  "hsl": {
    "h": 231.933,
    "s": 59.799,
    "l": 39.02
  },
  "oklch": {
    "l": 0.39883,
    "c": 0.16658,
    "h": 270
  },
  "luminance": 0.05783
}

Semantic roles & 50–950 ramp

primary

#28389F

secondary

#BFB364

accent

#CE45E3

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #28389F

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

Preview Lab → · Contrast checker → · Palette generator →