#28508E#28508E
#28508E is a dark, moderate blue. Relative luminance 0.081; OKLCH L 43.6% C 0.112 H 258.9°. Best body text is #FFFFFF at 7.99:1 contrast (WCAG AA passes).
Color values
| HEX | #28508E |
|---|---|
| RGB | rgb(40, 80, 142) |
| HSL | hsl(216, 56%, 36%) |
| HSV | hsv(216, 72%, 56%) |
| CMYK | cmyk(71.8%, 43.7%, 0%, 44.3%) |
| CIE-LAB | lab(34.27, 7.98, -38.51) |
| CIE-LCH | lch(34.27, 39.33, 281.71°) |
| OKLab | oklab(43.58% -0.0215 -0.11) |
| OKLCH | oklch(43.58% 0.112 258.9) |
| XYZ | xyz(8.6245, 8.1405, 26.7027) |
| Luminance | 0.0814 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Dusk Blue
#26538D
ΔE00 1.41
Cobalt (survey)
#1E488F
ΔE00 2.65
Light Navy
#155084
ΔE00 3.42
Denim Blue
#3B5B92
ΔE00 3.91
Light Navy Blue
#2E5A88
ΔE00 3.98
Cobalt
#0047AB
ΔE00 4.94
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#28508E #8E6628
analogous
#28838E #28508E #33288E
triadic
#28508E #8E2850 #508E28
tetradic
#28508E #8E2883 #8E6628 #288E33
square
#28508E #8E2883 #8E6628 #288E33
split-complementary
#28508E #8E3328 #838E28
monochromatic
#0D1A2F #1B355E #28508E #356BBE #5F8CD2
Accessibility & contrast
On white
7.99
#28508E on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.63
#28508E on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #28508E
7.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##28508E | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##28508E | 1.00 | 7.99 | 2.63 | 7.99 |
| #FFFFFF | 7.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.63 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#325690
Deuteranopia (green-blind)
#214C8D
Tritanopia (blue-blind)
#005E68
Achromatopsia (no color)
#515151
Design tokens & code
CSS
--color: #28508e; /* rgb */ color: rgb(40, 80, 142); /* oklch */ color: oklch(43.6% 0.112 258.9);
Tailwind
colors: {
custom: {
50: '#6f80af',
500: '#28508e',
950: '#000000',
},
}SCSS
$custom: #28508e; $custom-light: #6f80af; $custom-dark: #000000;
JSON
{
"hex": "#28508e",
"rgb": {
"r": 40,
"g": 80,
"b": 142
},
"hsl": {
"h": 216.471,
"s": 56.044,
"l": 35.686
},
"oklch": {
"l": 0.43576,
"c": 0.1121,
"h": 258.9
},
"luminance": 0.08141
}Semantic roles & 50–950 ramp
primary
#28508E
secondary
#B7935B
accent
#A448DF
background
#F7F7FA
surface
#EDEEF4
border
#C8C9CE
text
#080A10
muted
#7B7C7F