#15557B#15557B
#15557B is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 43.0% C 0.088 H 240.3°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).
Color values
| HEX | #15557B |
|---|---|
| RGB | rgb(21, 85, 123) |
| HSL | hsl(202, 71%, 28%) |
| HSV | hsv(202, 83%, 48%) |
| CMYK | cmyk(82.9%, 30.9%, 0%, 51.8%) |
| CIE-LAB | lab(34.16, -5.32, -27.05) |
| CIE-LCH | lch(34.16, 27.57, 258.87°) |
| OKLab | oklab(42.97% -0.0437 -0.0766) |
| OKLCH | oklch(42.97% 0.088 240.3) |
| XYZ | xyz(7.1315, 8.0856, 19.9199) |
| Luminance | 0.0809 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Deep Sea Blue
#015482
ΔE00 1.68
Light Navy
#155084
ΔE00 4.07
Light Navy Blue
#2E5A88
ΔE00 4.65
Dark Slate Blue
#214761
ΔE00 5.61
Dusk Blue
#26538D
ΔE00 5.76
Ugly Blue
#31668A
ΔE00 6.05
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#15557B #7B3B15
analogous
#157B6E #15557B #15227B
triadic
#15557B #7B1555 #557B15
tetradic
#15557B #6E157B #7B3B15 #227B15
square
#15557B #6E157B #7B3B15 #227B15
split-complementary
#15557B #7B1522 #7B6E15
monochromatic
#04121A #0C3147 #15557B #1E79AF #2F9BDB
Accessibility & contrast
On white
8.02
#15557B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.62
#15557B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #15557B
8.02:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##15557B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##15557B | 1.00 | 8.02 | 2.62 | 8.02 |
| #FFFFFF | 8.02 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.62 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.02 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#43557D
Deuteranopia (green-blind)
#354C7A
Tritanopia (blue-blind)
#005F62
Achromatopsia (no color)
#505050
Design tokens & code
CSS
--color: #15557b; /* rgb */ color: rgb(21, 85, 123); /* oklch */ color: oklch(43.0% 0.088 240.3);
Tailwind
colors: {
custom: {
50: '#6584a1',
500: '#15557b',
950: '#000000',
},
}SCSS
$custom: #15557b; $custom-light: #6584a1; $custom-dark: #000000;
JSON
{
"hex": "#15557b",
"rgb": {
"r": 21,
"g": 85,
"b": 123
},
"hsl": {
"h": 202.353,
"s": 70.833,
"l": 28.235
},
"oklch": {
"l": 0.42965,
"c": 0.08822,
"h": 240.3
},
"luminance": 0.08086
}Semantic roles & 50–950 ramp
primary
#15557B
secondary
#B0673B
accent
#7D3AEE
background
#F6F8F9
surface
#EBEFF2
border
#C6CACC
text
#060A0F
muted
#7A7C7E