#28497B#28497B

#28497B is a dark, moderate blue. Relative luminance 0.066; OKLCH L 40.7% C 0.093 H 258.5°. Best body text is #FFFFFF at 9.02:1 contrast (WCAG AA passes).

Color values

HEX	#28497B
RGB	rgb(40, 73, 123)
HSL	hsl(216, 51%, 32%)
HSV	hsv(216, 67%, 48%)
CMYK	cmyk(67.5%, 40.7%, 0%, 51.8%)
CIE-LAB	lab(30.99, 5.36, -32.03)
CIE-LCH	lch(30.99, 32.47, 279.50°)
OKLab	oklab(40.65% -0.0185 -0.0911)
OKLCH	oklch(40.65% 0.093 258.5)
XYZ	xyz(6.8315, 6.6456, 19.6578)
Luminance	0.0665 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28497B #7B5A28

analogous

#28737B #28497B #31287B

triadic

#28497B #7B2849 #497B28

tetradic

#28497B #7B2873 #7B5A28 #287B31

square

#28497B #7B2873 #7B5A28 #287B31

split-complementary

#28497B #7B3128 #737B28

monochromatic

#0A121F #192E4D #28497B #3764A9 #5683C8

Accessibility & contrast

On white

9.02

#28497B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#28497B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28497B

9.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28497B	#FFFFFF	#000000	##FFFFFF
##28497B	1.00	9.02	2.33	9.02
#FFFFFF	9.02	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#334D7D

Deuteranopia (green-blind)

#27457A

Tritanopia (blue-blind)

#00545C

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #28497b;
/* rgb */ color: rgb(40, 73, 123);
/* oklch */ color: oklch(40.7% 0.093 258.5);

Tailwind

colors: {
  custom: {
    50: '#6b7ba1',
    500: '#28497b',
    950: '#000000',
  },
}

SCSS

$custom: #28497b;
$custom-light: #6b7ba1;
$custom-dark: #000000;

JSON

{
  "hex": "#28497b",
  "rgb": {
    "r": 40,
    "g": 73,
    "b": 123
  },
  "hsl": {
    "h": 216.145,
    "s": 50.92,
    "l": 31.961
  },
  "oklch": {
    "l": 0.40654,
    "c": 0.09298,
    "h": 258.5
  },
  "luminance": 0.06646
}

Semantic roles & 50–950 ramp

primary

#28497B

secondary

#AD8952

accent

#A24DDA

background

#F6F7F9

surface

#ECEDF2

border

#C7C8CC

text

#07090F

muted

#7A7B7E

Preview Lab

Preview with #28497B

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

Preview Lab → · Contrast checker → · Palette generator →