#28487F#28487F

#28487F is a dark, moderate blue. Relative luminance 0.066; OKLCH L 40.7% C 0.100 H 260.5°. Best body text is #FFFFFF at 9.04:1 contrast (WCAG AA passes).

Color values

HEX	#28487F
RGB	rgb(40, 72, 127)
HSL	hsl(218, 52%, 33%)
HSV	hsv(218, 69%, 50%)
CMYK	cmyk(68.5%, 43.3%, 0%, 50.2%)
CIE-LAB	lab(30.92, 7.56, -34.62)
CIE-LCH	lch(30.92, 35.44, 282.32°)
OKLab	oklab(40.68% -0.0165 -0.0987)
OKLCH	oklch(40.68% 0.1 260.5)
XYZ	xyz(7.0218, 6.6175, 20.9818)
Luminance	0.0662 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28487F #7F5F28

analogous

#28737F #28487F #33287F

triadic

#28487F #7F2848 #487F28

tetradic

#28487F #7F2873 #7F5F28 #287F33

square

#28487F #7F2873 #7F5F28 #287F33

split-complementary

#28487F #7F3328 #737F28

monochromatic

#0B1322 #192E50 #28487F #3762AE #5782CA

Accessibility & contrast

On white

9.04

#28487F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#28487F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28487F

9.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28487F	#FFFFFF	#000000	##FFFFFF
##28487F	1.00	9.04	2.32	9.04
#FFFFFF	9.04	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F4D81

Deuteranopia (green-blind)

#21457E

Tritanopia (blue-blind)

#00555D

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #28487f;
/* rgb */ color: rgb(40, 72, 127);
/* oklch */ color: oklch(40.7% 0.100 260.5);

Tailwind

colors: {
  custom: {
    50: '#6c7aa4',
    500: '#28487f',
    950: '#000000',
  },
}

SCSS

$custom: #28487f;
$custom-light: #6c7aa4;
$custom-dark: #000000;

JSON

{
  "hex": "#28487f",
  "rgb": {
    "r": 40,
    "g": 72,
    "b": 127
  },
  "hsl": {
    "h": 217.931,
    "s": 52.096,
    "l": 32.745
  },
  "oklch": {
    "l": 0.40681,
    "c": 0.10011,
    "h": 260.5
  },
  "luminance": 0.06618
}

Semantic roles & 50–950 ramp

primary

#28487F

secondary

#AF8E54

accent

#A74CDC

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #28487F

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

Preview Lab → · Contrast checker → · Palette generator →