#1B5386#1B5386
#1B5386 is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 43.3% C 0.102 H 249.8°. Best body text is #FFFFFF at 7.99:1 contrast (WCAG AA passes).
Color values
| HEX | #1B5386 |
|---|---|
| RGB | rgb(27, 83, 134) |
| HSL | hsl(209, 66%, 32%) |
| HSV | hsv(209, 80%, 53%) |
| CMYK | cmyk(79.9%, 38.1%, 0%, 47.5%) |
| CIE-LAB | lab(34.27, 1.02, -33.64) |
| CIE-LCH | lch(34.27, 33.66, 271.74°) |
| OKLab | oklab(43.29% -0.0352 -0.0959) |
| OKLCH | oklch(43.29% 0.102 249.8) |
| XYZ | xyz(7.8467, 8.1398, 23.7072) |
| Luminance | 0.0814 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Light Navy
#155084
ΔE00 1.01
Dusk Blue
#26538D
ΔE00 2.25
Light Navy Blue
#2E5A88
ΔE00 2.70
Deep Sea Blue
#015482
ΔE00 2.87
Prussian Blue
#004577
ΔE00 4.68
Cobalt (survey)
#1E488F
ΔE00 5.13
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1B5386 #864E1B
analogous
#1B8684 #1B5386 #1B1E86
triadic
#1B5386 #861B53 #53861B
tetradic
#1B5386 #841B86 #864E1B #1E861B
square
#1B5386 #841B86 #864E1B #1E861B
split-complementary
#1B5386 #861B1E #86841B
monochromatic
#061420 #113353 #1B5386 #2573B9 #4291D9
Accessibility & contrast
On white
7.99
#1B5386 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.63
#1B5386 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1B5386
7.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1B5386 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1B5386 | 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)
#3B5688
Deuteranopia (green-blind)
#2B4C85
Tritanopia (blue-blind)
#005F66
Achromatopsia (no color)
#515151
Design tokens & code
CSS
--color: #1b5386; /* rgb */ color: rgb(27, 83, 134); /* oklch */ color: oklch(43.3% 0.102 249.8);
Tailwind
colors: {
custom: {
50: '#6983a9',
500: '#1b5386',
950: '#000000',
},
}SCSS
$custom: #1b5386; $custom-light: #6983a9; $custom-dark: #000000;
JSON
{
"hex": "#1b5386",
"rgb": {
"r": 27,
"g": 83,
"b": 134
},
"hsl": {
"h": 208.598,
"s": 66.46,
"l": 31.569
},
"oklch": {
"l": 0.43293,
"c": 0.10215,
"h": 249.8
},
"luminance": 0.08141
}Semantic roles & 50–950 ramp
primary
#1B5386
secondary
#B97C44
accent
#903EE9
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#070A10
muted
#7A7C7F