#1B8AAA#1B8AAA
#1B8AAA is a mid, moderate cyan. Relative luminance 0.213; OKLCH L 59.0% C 0.104 H 223.2°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).
Color values
| HEX | #1B8AAA |
|---|---|
| RGB | rgb(27, 138, 170) |
| HSL | hsl(193, 73%, 39%) |
| HSV | hsv(193, 84%, 67%) |
| CMYK | cmyk(84.1%, 18.8%, 0%, 33.3%) |
| CIE-LAB | lab(53.29, -18.09, -25.26) |
| CIE-LCH | lch(53.29, 31.06, 234.39°) |
| OKLab | oklab(58.98% -0.0755 -0.0709) |
| OKLCH | oklch(58.98% 0.104 223.2) |
| XYZ | xyz(16.7931, 21.3101, 41.2506) |
| Luminance | 0.2131 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Teal Blue
#01889F
ΔE00 3.81
Dirty Blue
#3F829D
ΔE00 3.85
Ocean
#017B92
ΔE00 6.64
Cerulean
#007BA7
ΔE00 6.88
Sea Blue
#047495
ΔE00 8.29
Stormy Blue
#507B9C
ΔE00 9.15
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1B8AAA #AA3B1B
analogous
#1BAA82 #1B8AAA #1B42AA
triadic
#1B8AAA #AA1B8A #8AAA1B
tetradic
#1B8AAA #821BAA #AA3B1B #42AA1B
square
#1B8AAA #821BAA #AA3B1B #42AA1B
split-complementary
#1B8AAA #AA1B42 #AA821B
monochromatic
#0A3440 #135F75 #1B8AAA #26B4DC #5BC6E5
Accessibility & contrast
On white
3.99
#1B8AAA on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.26
#1B8AAA on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #1B8AAA
5.26:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1B8AAA | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##1B8AAA | 1.00 | 3.99 | 5.26 | 5.26 |
| #FFFFFF | 3.99 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.26 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.26 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#7887AC
Deuteranopia (green-blind)
#657AAA
Tritanopia (blue-blind)
#009494
Achromatopsia (no color)
#7F7F7F
Design tokens & code
CSS
--color: #1b8aaa; /* rgb */ color: rgb(27, 138, 170); /* oklch */ color: oklch(59.0% 0.104 223.2);
Tailwind
colors: {
custom: {
50: '#73acc3',
500: '#1b8aaa',
950: '#000000',
},
}SCSS
$custom: #1b8aaa; $custom-light: #73acc3; $custom-dark: #000000;
JSON
{
"hex": "#1b8aaa",
"rgb": {
"r": 27,
"g": 138,
"b": 170
},
"hsl": {
"h": 193.427,
"s": 72.589,
"l": 38.627
},
"oklch": {
"l": 0.58981,
"c": 0.10356,
"h": 223.2
},
"luminance": 0.21312
}Semantic roles & 50–950 ramp
primary
#1B8AAA
secondary
#C97158
accent
#6139EF
background
#F7FAFC
surface
#EEF4F8
border
#C9CED1
text
#091012
muted
#7B7F81