#1B56B0#1B56B0
#1B56B0 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.0% C 0.156 H 259.2°. Best body text is #FFFFFF at 6.99:1 contrast (WCAG AA passes).
Color values
| HEX | #1B56B0 |
|---|---|
| RGB | rgb(27, 86, 176) |
| HSL | hsl(216, 73%, 40%) |
| HSV | hsv(216, 85%, 69%) |
| CMYK | cmyk(84.7%, 51.1%, 0%, 31%) |
| CIE-LAB | lab(37.88, 15.86, -53.14) |
| CIE-LCH | lch(37.88, 55.45, 286.62°) |
| OKLab | oklab(46.96% -0.0292 -0.1531) |
| OKLCH | oklch(46.96% 0.156 259.2) |
| XYZ | xyz(11.6134, 10.0217, 42.3882) |
| Luminance | 0.1002 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire
#0F52BA
ΔE00 1.95
Denim
#1560BD
ΔE00 3.75
Dusk Blue
#26538D
ΔE00 4.23
Denim Blue
#3B5B92
ΔE00 4.52
Light Navy Blue
#2E5A88
ΔE00 4.88
Cobalt
#0047AB
ΔE00 4.90
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1B56B0 #B0751B
analogous
#1BA0B0 #1B56B0 #2B1BB0
triadic
#1B56B0 #B01B56 #56B01B
tetradic
#1B56B0 #B01BA0 #B0751B #1BB02B
square
#1B56B0 #B01BA0 #B0751B #1BB02B
split-complementary
#1B56B0 #B02B1B #A0B01B
monochromatic
#0B2246 #133C7B #1B56B0 #2A71DE #5F95E6
Accessibility & contrast
On white
6.99
#1B56B0 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.00
#1B56B0 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #1B56B0
6.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1B56B0 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1B56B0 | 1.00 | 6.99 | 3.00 | 6.99 |
| #FFFFFF | 6.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.00 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 6.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#1B60B3
Deuteranopia (green-blind)
#0053AE
Tritanopia (blue-blind)
#006C7A
Achromatopsia (no color)
#595959
Design tokens & code
CSS
--color: #1b56b0; /* rgb */ color: rgb(27, 86, 176); /* oklch */ color: oklch(47.0% 0.156 259.2);
Tailwind
colors: {
custom: {
50: '#7384c8',
500: '#1b56b0',
950: '#000000',
},
}SCSS
$custom: #1b56b0; $custom-light: #7384c8; $custom-dark: #000000;
JSON
{
"hex": "#1b56b0",
"rgb": {
"r": 27,
"g": 86,
"b": 176
},
"hsl": {
"h": 216.242,
"s": 73.399,
"l": 39.804
},
"oklch": {
"l": 0.4696,
"c": 0.15586,
"h": 259.2
},
"luminance": 0.10023
}Semantic roles & 50–950 ramp
primary
#1B56B0
secondary
#CB9F5C
accent
#A738F0
background
#F7F8FC
surface
#EEEFF8
border
#C9CAD1
text
#090A13
muted
#7B7C82