#1B809C#1B809C
#1B809C is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 55.8% C 0.096 H 221.9°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).
Color values
| HEX | #1B809C |
|---|---|
| RGB | rgb(27, 128, 156) |
| HSL | hsl(193, 70%, 36%) |
| HSV | hsv(193, 83%, 61%) |
| CMYK | cmyk(82.7%, 17.9%, 0%, 38.8%) |
| CIE-LAB | lab(49.58, -17.56, -22.86) |
| CIE-LCH | lch(49.58, 28.83, 232.48°) |
| OKLab | oklab(55.81% -0.0714 -0.0641) |
| OKLCH | oklch(55.81% 0.096 221.9) |
| XYZ | xyz(14.1694, 18.0699, 34.1871) |
| Luminance | 0.1807 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Ocean
#017B92
ΔE00 3.10
Dirty Blue
#3F829D
ΔE00 3.20
Teal Blue
#01889F
ΔE00 3.90
Sea Blue
#047495
ΔE00 4.85
Cerulean
#007BA7
ΔE00 5.49
Ocean Blue (survey)
#03719C
ΔE00 7.67
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1B809C #9C371B
analogous
#1B9C77 #1B809C #1B3F9C
triadic
#1B809C #9C1B80 #809C1B
tetradic
#1B809C #771B9C #9C371B #3F9C1B
square
#1B809C #771B9C #9C371B #3F9C1B
split-complementary
#1B809C #9C1B3F #9C771B
monochromatic
#092A34 #125568 #1B809C #24ABD0 #51C2E1
Accessibility & contrast
On white
4.55
#1B809C on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.61
#1B809C on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #1B809C
4.61:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1B809C | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##1B809C | 1.00 | 4.55 | 4.61 | 4.61 |
| #FFFFFF | 4.55 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.61 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.61 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#707D9D
Deuteranopia (green-blind)
#5F719C
Tritanopia (blue-blind)
#008989
Achromatopsia (no color)
#767676
Design tokens & code
CSS
--color: #1b809c; /* rgb */ color: rgb(27, 128, 156); /* oklch */ color: oklch(55.8% 0.096 221.9);
Tailwind
colors: {
custom: {
50: '#6fa5b9',
500: '#1b809c',
950: '#000000',
},
}SCSS
$custom: #1b809c; $custom-light: #6fa5b9; $custom-dark: #000000;
JSON
{
"hex": "#1b809c",
"rgb": {
"r": 27,
"g": 128,
"b": 156
},
"hsl": {
"h": 193.023,
"s": 70.492,
"l": 35.882
},
"oklch": {
"l": 0.55813,
"c": 0.09594,
"h": 221.9
},
"luminance": 0.18072
}Semantic roles & 50–950 ramp
primary
#1B809C
secondary
#C3694F
accent
#613BED
background
#F7FAFB
surface
#EDF4F6
border
#C8CED0
text
#090F11
muted
#7B7F80