#28438C#28438C

#28438C is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.5% C 0.126 H 265.7°. Best body text is #FFFFFF at 9.24:1 contrast (WCAG AA passes).

Color values

HEX	#28438C
RGB	rgb(40, 67, 140)
HSL	hsl(224, 56%, 35%)
HSV	hsv(224, 71%, 55%)
CMYK	cmyk(71.4%, 52.1%, 0%, 45.1%)
CIE-LAB	lab(30.30, 15.98, -43.67)
CIE-LCH	lch(30.30, 46.50, 290.10°)
OKLab	oklab(40.48% -0.0093 -0.1254)
OKLCH	oklch(40.48% 0.126 265.7)
XYZ	xyz(7.6142, 6.3581, 25.6318)
Luminance	0.0636 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28438C #8C7128

analogous

#28758C #28438C #3F288C

triadic

#28438C #8C2843 #438C28

tetradic

#28438C #8C2875 #8C7128 #288C3F

square

#28438C #8C2875 #8C7128 #288C3F

split-complementary

#28438C #8C3F28 #758C28

monochromatic

#0D152D #1A2C5C #28438C #365ABC #5E7DD1

Accessibility & contrast

On white

9.24

#28438C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#28438C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28438C

9.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28438C	#FFFFFF	#000000	##FFFFFF
##28438C	1.00	9.24	2.27	9.24
#FFFFFF	9.24	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#174C8F

Deuteranopia (green-blind)

#00438B

Tritanopia (blue-blind)

#005461

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #28438c;
/* rgb */ color: rgb(40, 67, 140);
/* oklch */ color: oklch(40.5% 0.126 265.7);

Tailwind

colors: {
  custom: {
    50: '#6f76ae',
    500: '#28438c',
    950: '#000000',
  },
}

SCSS

$custom: #28438c;
$custom-light: #6f76ae;
$custom-dark: #000000;

JSON

{
  "hex": "#28438c",
  "rgb": {
    "r": 40,
    "g": 67,
    "b": 140
  },
  "hsl": {
    "h": 223.8,
    "s": 55.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.40483,
    "c": 0.12576,
    "h": 265.7
  },
  "luminance": 0.06359
}

Semantic roles & 50–950 ramp

primary

#28438C

secondary

#B69D5A

accent

#B649DF

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #28438C

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

Preview Lab → · Contrast checker → · Palette generator →