#155A5B#155A5B
#155A5B is a dark, moderate teal. Relative luminance 0.082; OKLCH L 42.7% C 0.065 H 196.4°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).
Color values
| HEX | #155A5B |
|---|---|
| RGB | rgb(21, 90, 91) |
| HSL | hsl(181, 63%, 22%) |
| HSV | hsv(181, 77%, 36%) |
| CMYK | cmyk(76.9%, 1.1%, 0%, 64.3%) |
| CIE-LAB | lab(34.45, -20.01, -6.66) |
| CIE-LCH | lch(34.45, 21.09, 198.40°) |
| OKLab | oklab(42.74% -0.0627 -0.0185) |
| OKLCH | oklch(42.74% 0.065 196.4) |
| XYZ | xyz(5.8529, 8.2264, 11.1749) |
| Luminance | 0.0823 (WCAG relative) |
| Temperature | cool |
| Family | teal |
Closest named colors
Dark Turquoise
#045C5A
ΔE00 2.16
Deep Teal
#00555A
ΔE00 2.51
Dark Teal
#014D4E
ΔE00 4.26
Petrol
#005F6A
ΔE00 4.73
Dark Aqua
#05696B
ΔE00 5.15
Dark Blue Green
#005249
ΔE00 5.83
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#155A5B #5B1615
analogous
#155B39 #155A5B #15375B
triadic
#155A5B #5B155A #5A5B15
tetradic
#155A5B #39155B #5B1615 #375B15
square
#155A5B #39155B #5B1615 #375B15
split-complementary
#155A5B #5B1537 #5B3915
monochromatic
#061919 #0A2929 #155A5B #208B8D #2CBCBE
Accessibility & contrast
On white
7.94
#155A5B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.65
#155A5B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #155A5B
7.94:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##155A5B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##155A5B | 1.00 | 7.94 | 2.65 | 7.94 |
| #FFFFFF | 7.94 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.65 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.94 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#53555B
Deuteranopia (green-blind)
#494E5B
Tritanopia (blue-blind)
#005D5A
Achromatopsia (no color)
#515151
Design tokens & code
CSS
--color: #155a5b; /* rgb */ color: rgb(21, 90, 91); /* oklch */ color: oklch(42.7% 0.065 196.4);
Tailwind
colors: {
custom: {
50: '#608989',
500: '#155a5b',
950: '#000000',
},
}SCSS
$custom: #155a5b; $custom-light: #608989; $custom-dark: #000000;
JSON
{
"hex": "#155a5b",
"rgb": {
"r": 21,
"g": 90,
"b": 91
},
"hsl": {
"h": 180.857,
"s": 62.5,
"l": 21.961
},
"oklch": {
"l": 0.42739,
"c": 0.06536,
"h": 196.4
},
"luminance": 0.08227
}Semantic roles & 50–950 ramp
primary
#155A5B
secondary
#923B39
accent
#4542E6
background
#F6F8F8
surface
#EBF0F0
border
#C6CBCB
text
#050B0B
muted
#7A7C7C