#28407D#28407D

#28407D is a dark, moderate blue. Relative luminance 0.056; OKLCH L 38.7% C 0.107 H 265.5°. Best body text is #FFFFFF at 9.91:1 contrast (WCAG AA passes).

Color values

HEX	#28407D
RGB	rgb(40, 64, 125)
HSL	hsl(223, 52%, 32%)
HSV	hsv(223, 68%, 49%)
CMYK	cmyk(68%, 48.8%, 0%, 51%)
CIE-LAB	lab(28.37, 12.24, -37.45)
CIE-LCH	lch(28.37, 39.40, 288.10°)
OKLab	oklab(38.68% -0.0084 -0.1072)
OKLCH	oklch(38.68% 0.108 265.5)
XYZ	xyz(6.4089, 5.5980, 20.1408)
Luminance	0.0560 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28407D #7D6528

analogous

#286A7D #28407D #3B287D

triadic

#28407D #7D2840 #407D28

tetradic

#28407D #7D286A #7D6528 #287D3B

square

#28407D #7D286A #7D6528 #287D3B

split-complementary

#28407D #7D3B28 #6A7D28

monochromatic

#0A1120 #19284F #28407D #3758AB #5677C9

Accessibility & contrast

On white

9.91

#28407D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#28407D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28407D

9.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28407D	#FFFFFF	#000000	##FFFFFF
##28407D	1.00	9.91	2.12	9.91
#FFFFFF	9.91	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#21477F

Deuteranopia (green-blind)

#103F7C

Tritanopia (blue-blind)

#004E58

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #28407d;
/* rgb */ color: rgb(40, 64, 125);
/* oklch */ color: oklch(38.7% 0.107 265.5);

Tailwind

colors: {
  custom: {
    50: '#6c74a3',
    500: '#28407d',
    950: '#000000',
  },
}

SCSS

$custom: #28407d;
$custom-light: #6c74a3;
$custom-dark: #000000;

JSON

{
  "hex": "#28407d",
  "rgb": {
    "r": 40,
    "g": 64,
    "b": 125
  },
  "hsl": {
    "h": 223.059,
    "s": 51.515,
    "l": 32.353
  },
  "oklch": {
    "l": 0.38682,
    "c": 0.1075,
    "h": 265.5
  },
  "luminance": 0.05599
}

Semantic roles & 50–950 ramp

primary

#28407D

secondary

#AE9453

accent

#B34DDB

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #28407D

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

Preview Lab → · Contrast checker → · Palette generator →