#18728A#18728A
#18728A is a mid, moderate cyan. Relative luminance 0.141; OKLCH L 51.3% C 0.087 H 220.9°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).
Color values
| HEX | #18728A |
|---|---|
| RGB | rgb(24, 114, 138) |
| HSL | hsl(193, 70%, 32%) |
| HSV | hsv(193, 83%, 54%) |
| CMYK | cmyk(82.6%, 17.4%, 0%, 45.9%) |
| CIE-LAB | lab(44.32, -16.50, -20.35) |
| CIE-LCH | lch(44.32, 26.20, 230.97°) |
| OKLab | oklab(51.33% -0.0659 -0.057) |
| OKLCH | oklch(51.33% 0.087 220.9) |
| XYZ | xyz(10.9795, 14.0624, 26.1755) |
| Luminance | 0.1406 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Sea Blue
#047495
ΔE00 3.05
Ocean
#017B92
ΔE00 3.51
Ocean Blue (survey)
#03719C
ΔE00 6.46
Cerulean
#007BA7
ΔE00 7.10
Dirty Blue
#3F829D
ΔE00 7.19
Deep Aqua
#08787F
ΔE00 7.98
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#18728A #8A3018
analogous
#188A69 #18728A #18398A
triadic
#18728A #8A1872 #728A18
tetradic
#18728A #69188A #8A3018 #398A18
square
#18728A #69188A #8A3018 #398A18
split-complementary
#18728A #8A1839 #8A6918
monochromatic
#061C22 #0F4756 #18728A #219DBE #3FBCDE
Accessibility & contrast
On white
5.51
#18728A on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.81
#18728A on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #18728A
5.51:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##18728A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##18728A | 1.00 | 5.51 | 3.81 | 5.51 |
| #FFFFFF | 5.51 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.81 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.51 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#646F8B
Deuteranopia (green-blind)
#55648A
Tritanopia (blue-blind)
#007A7A
Achromatopsia (no color)
#696969
Design tokens & code
CSS
--color: #18728a; /* rgb */ color: rgb(24, 114, 138); /* oklch */ color: oklch(51.3% 0.087 220.9);
Tailwind
colors: {
custom: {
50: '#6a9aac',
500: '#18728a',
950: '#000000',
},
}SCSS
$custom: #18728a; $custom-light: #6a9aac; $custom-dark: #000000;
JSON
{
"hex": "#18728a",
"rgb": {
"r": 24,
"g": 114,
"b": 138
},
"hsl": {
"h": 192.632,
"s": 70.37,
"l": 31.765
},
"oklch": {
"l": 0.51328,
"c": 0.0871,
"h": 220.9
},
"luminance": 0.14064
}Semantic roles & 50–950 ramp
primary
#18728A
secondary
#BD5B40
accent
#603BED
background
#F6F9FA
surface
#ECF2F4
border
#C7CCCE
text
#080E10
muted
#7A7E7F