#1C528B#1C528B
#1C528B is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 43.4% C 0.110 H 252.8°. Best body text is #FFFFFF at 7.99:1 contrast (WCAG AA passes).
Color values
| HEX | #1C528B |
|---|---|
| RGB | rgb(28, 82, 139) |
| HSL | hsl(211, 66%, 33%) |
| HSV | hsv(211, 80%, 55%) |
| CMYK | cmyk(79.9%, 41%, 0%, 45.5%) |
| CIE-LAB | lab(34.28, 3.79, -36.69) |
| CIE-LCH | lch(34.28, 36.88, 275.90°) |
| OKLab | oklab(43.41% -0.0324 -0.1048) |
| OKLCH | oklch(43.41% 0.11 252.8) |
| XYZ | xyz(8.1546, 8.1446, 25.5634) |
| Luminance | 0.0815 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dusk Blue
#26538D
ΔE00 1.29
Light Navy
#155084
ΔE00 1.41
Light Navy Blue
#2E5A88
ΔE00 2.93
Deep Sea Blue
#015482
ΔE00 4.00
Cobalt (survey)
#1E488F
ΔE00 4.21
Denim Blue
#3B5B92
ΔE00 4.66
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1C528B #8B551C
analogous
#1C898B #1C528B #1E1C8B
triadic
#1C528B #8B1C52 #528B1C
tetradic
#1C528B #8B1C89 #8B551C #1C8B1E
square
#1C528B #8B1C89 #8B551C #1C8B1E
split-complementary
#1C528B #8B1E1C #898B1C
monochromatic
#071625 #123458 #1C528B #2670BE #478FDA
Accessibility & contrast
On white
7.99
#1C528B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.63
#1C528B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1C528B
7.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1C528B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1C528B | 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)
#37568D
Deuteranopia (green-blind)
#244C8A
Tritanopia (blue-blind)
#006067
Achromatopsia (no color)
#515151
Design tokens & code
CSS
--color: #1c528b; /* rgb */ color: rgb(28, 82, 139); /* oklch */ color: oklch(43.4% 0.110 252.8);
Tailwind
colors: {
custom: {
50: '#6a82ad',
500: '#1c528b',
950: '#000000',
},
}SCSS
$custom: #1c528b; $custom-light: #6a82ad; $custom-dark: #000000;
JSON
{
"hex": "#1c528b",
"rgb": {
"r": 28,
"g": 82,
"b": 139
},
"hsl": {
"h": 210.811,
"s": 66.467,
"l": 32.745
},
"oklch": {
"l": 0.43405,
"c": 0.1097,
"h": 252.8
},
"luminance": 0.08146
}Semantic roles & 50–950 ramp
primary
#1C528B
secondary
#BC8347
accent
#963EE9
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#070A10
muted
#7A7C7F