#1B4E91#1B4E91
#1B4E91 is a dark, vivid cyan. Relative luminance 0.077; OKLCH L 42.8% C 0.123 H 256.8°. Best body text is #FFFFFF at 8.25:1 contrast (WCAG AA passes).
Color values
| HEX | #1B4E91 |
|---|---|
| RGB | rgb(27, 78, 145) |
| HSL | hsl(214, 69%, 34%) |
| HSV | hsv(214, 81%, 57%) |
| CMYK | cmyk(81.4%, 46.2%, 0%, 43.1%) |
| CIE-LAB | lab(33.40, 8.75, -41.76) |
| CIE-LCH | lch(33.40, 42.66, 281.83°) |
| OKLab | oklab(42.84% -0.0281 -0.1198) |
| OKLCH | oklch(42.84% 0.123 256.8) |
| XYZ | xyz(8.2853, 7.7251, 27.8370) |
| Luminance | 0.0773 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dusk Blue
#26538D
ΔE00 1.78
Cobalt (survey)
#1E488F
ΔE00 2.36
Light Navy
#155084
ΔE00 2.84
Twilight Blue
#0A437A
ΔE00 4.35
Darkish Blue
#014182
ΔE00 4.37
Light Navy Blue
#2E5A88
ΔE00 4.40
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1B4E91 #915E1B
analogous
#1B8991 #1B4E91 #231B91
triadic
#1B4E91 #911B4E #4E911B
tetradic
#1B4E91 #911B89 #915E1B #1B9123
square
#1B4E91 #911B89 #915E1B #1B9123
split-complementary
#1B4E91 #91231B #89911B
monochromatic
#08162A #11325D #1B4E91 #256AC5 #4989DD
Accessibility & contrast
On white
8.25
#1B4E91 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.55
#1B4E91 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1B4E91
8.25:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1B4E91 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1B4E91 | 1.00 | 8.25 | 2.55 | 8.25 |
| #FFFFFF | 8.25 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.55 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.25 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#2B5494
Deuteranopia (green-blind)
#104A90
Tritanopia (blue-blind)
#005E68
Achromatopsia (no color)
#4F4F4F
Design tokens & code
CSS
--color: #1b4e91; /* rgb */ color: rgb(27, 78, 145); /* oklch */ color: oklch(42.8% 0.123 256.8);
Tailwind
colors: {
custom: {
50: '#6b7fb2',
500: '#1b4e91',
950: '#000000',
},
}SCSS
$custom: #1b4e91; $custom-light: #6b7fb2; $custom-dark: #000000;
JSON
{
"hex": "#1b4e91",
"rgb": {
"r": 27,
"g": 78,
"b": 145
},
"hsl": {
"h": 214.068,
"s": 68.605,
"l": 33.725
},
"oklch": {
"l": 0.42836,
"c": 0.12305,
"h": 256.8
},
"luminance": 0.07726
}Semantic roles & 50–950 ramp
primary
#1B4E91
secondary
#BF8C49
accent
#A03CEB
background
#F6F7FB
surface
#ECEEF6
border
#C7C9D0
text
#080A11
muted
#7A7C80