#28387C#28387C

#28387C is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.8% C 0.117 H 269.8°. Best body text is #FFFFFF at 10.79:1 contrast (WCAG AA passes).

Color values

HEX	#28387C
RGB	rgb(40, 56, 124)
HSL	hsl(229, 51%, 32%)
HSV	hsv(229, 68%, 49%)
CMYK	cmyk(67.7%, 54.8%, 0%, 51.4%)
CIE-LAB	lab(25.96, 17.39, -40.70)
CIE-LCH	lch(25.96, 44.26, 293.13°)
OKLab	oklab(36.83% -0.0003 -0.1169)
OKLCH	oklch(36.83% 0.117 269.8)
XYZ	xyz(5.9261, 4.7342, 19.6664)
Luminance	0.0474 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28387C #7C6C28

analogous

#28627C #28387C #42287C

triadic

#28387C #7C2838 #387C28

tetradic

#28387C #7C2862 #7C6C28 #287C42

square

#28387C #7C2862 #7C6C28 #287C42

split-complementary

#28387C #7C4228 #627C28

monochromatic

#0A0E1F #19234E #28387C #374DAA #566CC8

Accessibility & contrast

On white

10.79

#28387C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#28387C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28387C

10.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28387C	#FFFFFF	#000000	##FFFFFF
##28387C	1.00	10.79	1.95	10.79
#FFFFFF	10.79	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C417E

Deuteranopia (green-blind)

#003A7B

Tritanopia (blue-blind)

#004854

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #28387c;
/* rgb */ color: rgb(40, 56, 124);
/* oklch */ color: oklch(36.8% 0.117 269.8);

Tailwind

colors: {
  custom: {
    50: '#6c6ea2',
    500: '#28387c',
    950: '#000000',
  },
}

SCSS

$custom: #28387c;
$custom-light: #6c6ea2;
$custom-dark: #000000;

JSON

{
  "hex": "#28387c",
  "rgb": {
    "r": 40,
    "g": 56,
    "b": 124
  },
  "hsl": {
    "h": 228.571,
    "s": 51.22,
    "l": 32.157
  },
  "oklch": {
    "l": 0.36828,
    "c": 0.11687,
    "h": 269.8
  },
  "luminance": 0.04735
}

Semantic roles & 50–950 ramp

primary

#28387C

secondary

#AD9C52

accent

#C04DDB

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #28387C

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

Preview Lab → · Contrast checker → · Palette generator →