#18508B#18508B
#18508B is a dark, moderate cyan. Relative luminance 0.078; OKLCH L 42.8% C 0.113 H 253.1°. Best body text is #FFFFFF at 8.21:1 contrast (WCAG AA passes).
Color values
| HEX | #18508B |
|---|---|
| RGB | rgb(24, 80, 139) |
| HSL | hsl(211, 71%, 32%) |
| HSV | hsv(211, 83%, 55%) |
| CMYK | cmyk(82.7%, 42.4%, 0%, 45.5%) |
| CIE-LAB | lab(33.55, 4.66, -37.86) |
| CIE-LCH | lch(33.55, 38.15, 277.01°) |
| OKLab | oklab(42.8% -0.0328 -0.1083) |
| OKLCH | oklch(42.8% 0.113 253.1) |
| XYZ | xyz(7.9038, 7.7946, 25.5090) |
| Luminance | 0.0780 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Light Navy
#155084
ΔE00 1.34
Dusk Blue
#26538D
ΔE00 1.57
Light Navy Blue
#2E5A88
ΔE00 3.57
Cobalt (survey)
#1E488F
ΔE00 3.72
Prussian Blue
#004577
ΔE00 4.22
Deep Sea Blue
#015482
ΔE00 4.25
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#18508B #8B5318
analogous
#188A8B #18508B #1A188B
triadic
#18508B #8B1850 #508B18
tetradic
#18508B #8B188A #8B5318 #188B1A
square
#18508B #8B188A #8B5318 #188B1A
split-complementary
#18508B #8B1A18 #8A8B18
monochromatic
#061423 #0F3257 #18508B #216EBF #3F8DDE
Accessibility & contrast
On white
8.21
#18508B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.56
#18508B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #18508B
8.21:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##18508B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##18508B | 1.00 | 8.21 | 2.56 | 8.21 |
| #FFFFFF | 8.21 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.56 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.21 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#33548D
Deuteranopia (green-blind)
#1F4A8A
Tritanopia (blue-blind)
#005E66
Achromatopsia (no color)
#4F4F4F
Design tokens & code
CSS
--color: #18508b; /* rgb */ color: rgb(24, 80, 139); /* oklch */ color: oklch(42.8% 0.113 253.1);
Tailwind
colors: {
custom: {
50: '#6980ad',
500: '#18508b',
950: '#000000',
},
}SCSS
$custom: #18508b; $custom-light: #6980ad; $custom-dark: #000000;
JSON
{
"hex": "#18508b",
"rgb": {
"r": 24,
"g": 80,
"b": 139
},
"hsl": {
"h": 210.783,
"s": 70.552,
"l": 31.961
},
"oklch": {
"l": 0.42804,
"c": 0.1132,
"h": 253.1
},
"luminance": 0.07796
}Semantic roles & 50–950 ramp
primary
#18508B
secondary
#BE8140
accent
#963AED
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#070A10
muted
#7A7C7F