#1B6E8B#1B6E8B
#1B6E8B is a mid, moderate cyan. Relative luminance 0.132; OKLCH L 50.4% C 0.088 H 226.7°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).
Color values
| HEX | #1B6E8B |
|---|---|
| RGB | rgb(27, 110, 139) |
| HSL | hsl(196, 67%, 33%) |
| HSV | hsv(196, 81%, 55%) |
| CMYK | cmyk(80.6%, 20.9%, 0%, 45.5%) |
| CIE-LAB | lab(43.13, -13.56, -22.78) |
| CIE-LCH | lch(43.13, 26.51, 239.23°) |
| OKLab | oklab(50.41% -0.0603 -0.064) |
| OKLCH | oklch(50.41% 0.088 226.7) |
| XYZ | xyz(10.6862, 13.2476, 26.4149) |
| Luminance | 0.1325 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Sea Blue
#047495
ΔE00 2.36
Ocean Blue (survey)
#03719C
ΔE00 4.29
Ocean
#017B92
ΔE00 5.87
Peacock Blue
#016795
ΔE00 6.01
Ugly Blue
#31668A
ΔE00 6.01
Cerulean
#007BA7
ΔE00 6.20
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1B6E8B #8B381B
analogous
#1B8B70 #1B6E8B #1B368B
triadic
#1B6E8B #8B1B6E #6E8B1B
tetradic
#1B6E8B #701B8B #8B381B #368B1B
square
#1B6E8B #701B8B #8B381B #368B1B
split-complementary
#1B6E8B #8B1B36 #8B701B
monochromatic
#071D25 #114558 #1B6E8B #2597BE #45B4DB
Accessibility & contrast
On white
5.75
#1B6E8B on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.65
#1B6E8B on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #1B6E8B
5.75:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1B6E8B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1B6E8B | 1.00 | 5.75 | 3.65 | 5.75 |
| #FFFFFF | 5.75 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.65 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.75 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5E6C8C
Deuteranopia (green-blind)
#50618B
Tritanopia (blue-blind)
#007678
Achromatopsia (no color)
#666666
Design tokens & code
CSS
--color: #1b6e8b; /* rgb */ color: rgb(27, 110, 139); /* oklch */ color: oklch(50.4% 0.088 226.7);
Tailwind
colors: {
custom: {
50: '#6b97ad',
500: '#1b6e8b',
950: '#000000',
},
}SCSS
$custom: #1b6e8b; $custom-light: #6b97ad; $custom-dark: #000000;
JSON
{
"hex": "#1b6e8b",
"rgb": {
"r": 27,
"g": 110,
"b": 139
},
"hsl": {
"h": 195.536,
"s": 67.47,
"l": 32.549
},
"oklch": {
"l": 0.50405,
"c": 0.08789,
"h": 226.7
},
"luminance": 0.13249
}Semantic roles & 50–950 ramp
primary
#1B6E8B
secondary
#BC6445
accent
#6A3DEA
background
#F6F9FA
surface
#ECF2F4
border
#C7CCCE
text
#080D10
muted
#7A7E7F