#1B788B#1B788B
#1B788B is a mid, moderate cyan. Relative luminance 0.155; OKLCH L 53.0% C 0.086 H 215.3°. Best body text is #FFFFFF at 5.11:1 contrast (WCAG AA passes).
Color values
| HEX | #1B788B |
|---|---|
| RGB | rgb(27, 120, 139) |
| HSL | hsl(190, 67%, 33%) |
| HSV | hsv(190, 81%, 55%) |
| CMYK | cmyk(80.6%, 13.7%, 0%, 45.5%) |
| CIE-LAB | lab(46.35, -19.13, -17.83) |
| CIE-LCH | lch(46.35, 26.15, 222.99°) |
| OKLab | oklab(52.99% -0.0704 -0.0498) |
| OKLCH | oklch(52.99% 0.086 215.3) |
| XYZ | xyz(11.8267, 15.5286, 26.7951) |
| Luminance | 0.1553 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Ocean
#017B92
ΔE00 1.66
Sea Blue
#047495
ΔE00 5.31
Deep Aqua
#08787F
ΔE00 5.58
Teal Blue
#01889F
ΔE00 5.95
Dirty Blue
#3F829D
ΔE00 6.69
Deep Turquoise
#017374
ΔE00 8.49
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1B788B #8B2E1B
analogous
#1B8B66 #1B788B #1B408B
triadic
#1B788B #8B1B78 #788B1B
tetradic
#1B788B #661B8B #8B2E1B #408B1B
square
#1B788B #661B8B #8B2E1B #408B1B
split-complementary
#1B788B #8B1B40 #8B661B
monochromatic
#072025 #114C58 #1B788B #25A4BE #45C2DB
Accessibility & contrast
On white
5.11
#1B788B on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.11
#1B788B on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #1B788B
5.11:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1B788B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1B788B | 1.00 | 5.11 | 4.11 | 5.11 |
| #FFFFFF | 5.11 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.11 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.11 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6B748C
Deuteranopia (green-blind)
#5C698B
Tritanopia (blue-blind)
#007F7E
Achromatopsia (no color)
#6E6E6E
Design tokens & code
CSS
--color: #1b788b; /* rgb */ color: rgb(27, 120, 139); /* oklch */ color: oklch(53.0% 0.086 215.3);
Tailwind
colors: {
custom: {
50: '#6c9fad',
500: '#1b788b',
950: '#000000',
},
}SCSS
$custom: #1b788b; $custom-light: #6c9fad; $custom-dark: #000000;
JSON
{
"hex": "#1b788b",
"rgb": {
"r": 27,
"g": 120,
"b": 139
},
"hsl": {
"h": 190.179,
"s": 67.47,
"l": 32.549
},
"oklch": {
"l": 0.52988,
"c": 0.08625,
"h": 215.3
},
"luminance": 0.1553
}Semantic roles & 50–950 ramp
primary
#1B788B
secondary
#BC5A45
accent
#5B3DEA
background
#F7F9FA
surface
#EDF2F4
border
#C8CCCE
text
#080E10
muted
#7B7E7F