#155A5C#155A5C
#155A5C is a dark, moderate teal. Relative luminance 0.082; OKLCH L 42.8% C 0.065 H 197.9°. Best body text is #FFFFFF at 7.93:1 contrast (WCAG AA passes).
Color values
| HEX | #155A5C |
|---|---|
| RGB | rgb(21, 90, 92) |
| HSL | hsl(182, 63%, 22%) |
| HSV | hsv(182, 77%, 36%) |
| CMYK | cmyk(77.2%, 2.2%, 0%, 63.9%) |
| CIE-LAB | lab(34.49, -19.68, -7.23) |
| CIE-LCH | lch(34.49, 20.96, 200.17°) |
| OKLab | oklab(42.78% -0.0622 -0.0201) |
| OKLCH | oklch(42.78% 0.065 197.9) |
| XYZ | xyz(5.8963, 8.2438, 11.4036) |
| Luminance | 0.0824 (WCAG relative) |
| Temperature | cool |
| Family | teal |
Closest named colors
Deep Teal
#00555A
ΔE00 2.21
Dark Turquoise
#045C5A
ΔE00 2.59
Petrol
#005F6A
ΔE00 4.28
Dark Teal
#014D4E
ΔE00 4.32
Dark Aqua
#05696B
ΔE00 5.18
Dark Blue Green
#005249
ΔE00 6.28
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#155A5C #5C1715
analogous
#155C3B #155A5C #15375C
triadic
#155A5C #5C155A #5A5C15
tetradic
#155A5C #3B155C #5C1715 #375C15
square
#155A5C #3B155C #5C1715 #375C15
split-complementary
#155A5C #5C1537 #5C3B15
monochromatic
#061819 #0A292A #155A5C #208B8E #2CBBC0
Accessibility & contrast
On white
7.93
#155A5C on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.65
#155A5C on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #155A5C
7.93:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##155A5C | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##155A5C | 1.00 | 7.93 | 2.65 | 7.93 |
| #FFFFFF | 7.93 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.65 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.93 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#53555C
Deuteranopia (green-blind)
#494E5C
Tritanopia (blue-blind)
#005D5A
Achromatopsia (no color)
#515151
Design tokens & code
CSS
--color: #155a5c; /* rgb */ color: rgb(21, 90, 92); /* oklch */ color: oklch(42.8% 0.065 197.9);
Tailwind
colors: {
custom: {
50: '#60898a',
500: '#155a5c',
950: '#000000',
},
}SCSS
$custom: #155a5c; $custom-light: #60898a; $custom-dark: #000000;
JSON
{
"hex": "#155a5c",
"rgb": {
"r": 21,
"g": 90,
"b": 92
},
"hsl": {
"h": 181.69,
"s": 62.832,
"l": 22.157
},
"oklch": {
"l": 0.4278,
"c": 0.06535,
"h": 197.9
},
"luminance": 0.08244
}Semantic roles & 50–950 ramp
primary
#155A5C
secondary
#933C39
accent
#4742E6
background
#F6F8F8
surface
#EBF0F0
border
#C6CBCB
text
#050B0B
muted
#7A7C7C