#1B748B#1B748B
#1B748B is a mid, moderate cyan. Relative luminance 0.146; OKLCH L 52.0% C 0.086 H 219.9°. Best body text is #FFFFFF at 5.36:1 contrast (WCAG AA passes).
Color values
| HEX | #1B748B |
|---|---|
| RGB | rgb(27, 116, 139) |
| HSL | hsl(192, 67%, 33%) |
| HSV | hsv(192, 81%, 55%) |
| CMYK | cmyk(80.6%, 16.5%, 0%, 45.5%) |
| CIE-LAB | lab(45.06, -16.94, -19.81) |
| CIE-LCH | lch(45.06, 26.06, 229.46°) |
| OKLab | oklab(51.95% -0.0664 -0.0554) |
| OKLCH | oklch(51.95% 0.086 219.9) |
| XYZ | xyz(11.3556, 14.5865, 26.6381) |
| Luminance | 0.1459 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Ocean
#017B92
ΔE00 2.76
Sea Blue
#047495
ΔE00 3.37
Dirty Blue
#3F829D
ΔE00 6.68
Ocean Blue (survey)
#03719C
ΔE00 6.92
Cerulean
#007BA7
ΔE00 7.15
Teal Blue
#01889F
ΔE00 7.45
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1B748B #8B321B
analogous
#1B8B6A #1B748B #1B3C8B
triadic
#1B748B #8B1B74 #748B1B
tetradic
#1B748B #6A1B8B #8B321B #3C8B1B
square
#1B748B #6A1B8B #8B321B #3C8B1B
split-complementary
#1B748B #8B1B3C #8B6A1B
monochromatic
#071E25 #114958 #1B748B #259FBE #45BCDB
Accessibility & contrast
On white
5.36
#1B748B on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.92
#1B748B on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #1B748B
5.36:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1B748B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1B748B | 1.00 | 5.36 | 3.92 | 5.36 |
| #FFFFFF | 5.36 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.92 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.36 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#66718C
Deuteranopia (green-blind)
#57668B
Tritanopia (blue-blind)
#007C7B
Achromatopsia (no color)
#6B6B6B
Design tokens & code
CSS
--color: #1b748b; /* rgb */ color: rgb(27, 116, 139); /* oklch */ color: oklch(52.0% 0.086 219.9);
Tailwind
colors: {
custom: {
50: '#6b9cad',
500: '#1b748b',
950: '#000000',
},
}SCSS
$custom: #1b748b; $custom-light: #6b9cad; $custom-dark: #000000;
JSON
{
"hex": "#1b748b",
"rgb": {
"r": 27,
"g": 116,
"b": 139
},
"hsl": {
"h": 192.321,
"s": 67.47,
"l": 32.549
},
"oklch": {
"l": 0.51952,
"c": 0.08645,
"h": 219.9
},
"luminance": 0.14588
}Semantic roles & 50–950 ramp
primary
#1B748B
secondary
#BC5E45
accent
#613DEA
background
#F7F9FA
surface
#EDF2F4
border
#C8CCCE
text
#080E10
muted
#7B7E7F