#28528C#28528C
#28528C is a dark, moderate cyan. Relative luminance 0.084; OKLCH L 43.9% C 0.107 H 257.0°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).
Color values
| HEX | #28528C |
|---|---|
| RGB | rgb(40, 82, 140) |
| HSL | hsl(215, 56%, 35%) |
| HSV | hsv(215, 71%, 55%) |
| CMYK | cmyk(71.4%, 41.4%, 0%, 45.1%) |
| CIE-LAB | lab(34.76, 5.89, -36.52) |
| CIE-LCH | lch(34.76, 36.99, 279.17°) |
| OKLab | oklab(43.91% -0.024 -0.1041) |
| OKLCH | oklch(43.91% 0.107 257) |
| XYZ | xyz(8.6243, 8.3782, 25.9685) |
| Luminance | 0.0838 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dusk Blue
#26538D
ΔE00 0.56
Light Navy
#155084
ΔE00 2.85
Light Navy Blue
#2E5A88
ΔE00 3.15
Cobalt (survey)
#1E488F
ΔE00 3.44
Denim Blue
#3B5B92
ΔE00 3.57
Twilight Blue
#0A437A
ΔE00 5.28
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#28528C #8C6228
analogous
#28848C #28528C #30288C
triadic
#28528C #8C2852 #528C28
tetradic
#28528C #8C2884 #8C6228 #288C30
square
#28528C #8C2884 #8C6228 #288C30
split-complementary
#28528C #8C3028 #848C28
monochromatic
#0D1A2D #1A365C #28528C #366EBC #5E8ED1
Accessibility & contrast
On white
7.85
#28528C on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.68
#28528C on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #28528C
7.85:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##28528C | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##28528C | 1.00 | 7.85 | 2.68 | 7.85 |
| #FFFFFF | 7.85 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.68 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.85 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#37578E
Deuteranopia (green-blind)
#274D8B
Tritanopia (blue-blind)
#005F68
Achromatopsia (no color)
#525252
Design tokens & code
CSS
--color: #28528c; /* rgb */ color: rgb(40, 82, 140); /* oklch */ color: oklch(43.9% 0.107 257.0);
Tailwind
colors: {
custom: {
50: '#6f82ae',
500: '#28528c',
950: '#000000',
},
}SCSS
$custom: #28528c; $custom-light: #6f82ae; $custom-dark: #000000;
JSON
{
"hex": "#28528c",
"rgb": {
"r": 40,
"g": 82,
"b": 140
},
"hsl": {
"h": 214.8,
"s": 55.556,
"l": 35.294
},
"oklch": {
"l": 0.43912,
"c": 0.10685,
"h": 257
},
"luminance": 0.08379
}Semantic roles & 50–950 ramp
primary
#28528C
secondary
#B68F5A
accent
#A049DF
background
#F7F7FA
surface
#EDEEF4
border
#C8C9CE
text
#080A10
muted
#7B7C7F