#1B5684#1B5684
#1B5684 is a dark, moderate cyan. Relative luminance 0.086; OKLCH L 43.9% C 0.096 H 246.3°. Best body text is #FFFFFF at 7.75:1 contrast (WCAG AA passes).
Color values
| HEX | #1B5684 |
|---|---|
| RGB | rgb(27, 86, 132) |
| HSL | hsl(206, 66%, 31%) |
| HSV | hsv(206, 80%, 52%) |
| CMYK | cmyk(79.5%, 34.8%, 0%, 48.2%) |
| CIE-LAB | lab(35.11, -1.70, -31.09) |
| CIE-LCH | lch(35.11, 31.14, 266.87°) |
| OKLab | oklab(43.92% -0.0387 -0.0883) |
| OKLCH | oklch(43.92% 0.096 246.3) |
| XYZ | xyz(7.9430, 8.5536, 23.0577) |
| Luminance | 0.0856 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Deep Sea Blue
#015482
ΔE00 1.78
Light Navy
#155084
ΔE00 2.34
Light Navy Blue
#2E5A88
ΔE00 2.58
Dusk Blue
#26538D
ΔE00 3.55
Denim (survey)
#3B638C
ΔE00 5.26
Prussian Blue
#004577
ΔE00 5.67
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1B5684 #84491B
analogous
#1B847D #1B5684 #1B2184
triadic
#1B5684 #841B56 #56841B
tetradic
#1B5684 #7D1B84 #84491B #21841B
square
#1B5684 #7D1B84 #84491B #21841B
split-complementary
#1B5684 #841B21 #847D1B
monochromatic
#06141E #113551 #1B5684 #2577B7 #4196D8
Accessibility & contrast
On white
7.75
#1B5684 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.71
#1B5684 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1B5684
7.75:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1B5684 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1B5684 | 1.00 | 7.75 | 2.71 | 7.75 |
| #FFFFFF | 7.75 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.71 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.75 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#415886
Deuteranopia (green-blind)
#324E83
Tritanopia (blue-blind)
#006167
Achromatopsia (no color)
#535353
Design tokens & code
CSS
--color: #1b5684; /* rgb */ color: rgb(27, 86, 132); /* oklch */ color: oklch(43.9% 0.096 246.3);
Tailwind
colors: {
custom: {
50: '#6885a8',
500: '#1b5684',
950: '#000000',
},
}SCSS
$custom: #1b5684; $custom-light: #6885a8; $custom-dark: #000000;
JSON
{
"hex": "#1b5684",
"rgb": {
"r": 27,
"g": 86,
"b": 132
},
"hsl": {
"h": 206.286,
"s": 66.038,
"l": 31.176
},
"oklch": {
"l": 0.43915,
"c": 0.09647,
"h": 246.3
},
"luminance": 0.08555
}Semantic roles & 50–950 ramp
primary
#1B5684
secondary
#B77643
accent
#893FE9
background
#F6F8FA
surface
#ECEFF4
border
#C7CACE
text
#070B0F
muted
#7A7C7F