#1B585C#1B585C
#1B585C is a dark, moderate teal. Relative luminance 0.080; OKLCH L 42.4% C 0.061 H 201.3°. Best body text is #FFFFFF at 8.09:1 contrast (WCAG AA passes).
Color values
| HEX | #1B585C |
|---|---|
| RGB | rgb(27, 88, 92) |
| HSL | hsl(184, 55%, 23%) |
| HSV | hsv(184, 71%, 36%) |
| CMYK | cmyk(70.7%, 4.3%, 0%, 63.9%) |
| CIE-LAB | lab(33.95, -17.64, -8.02) |
| CIE-LCH | lch(33.95, 19.37, 204.45°) |
| OKLab | oklab(42.39% -0.0569 -0.0222) |
| OKLCH | oklch(42.39% 0.061 201.3) |
| XYZ | xyz(5.8726, 7.9845, 11.3548) |
| Luminance | 0.0799 (WCAG relative) |
| Temperature | cool |
| Family | teal |
Closest named colors
Deep Teal
#00555A
ΔE00 1.93
Petrol
#005F6A
ΔE00 3.81
Dark Turquoise
#045C5A
ΔE00 4.17
Dark Teal
#014D4E
ΔE00 4.30
Darkslategray
#2F4F4F
ΔE00 5.33
Dark Aqua
#05696B
ΔE00 6.25
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1B585C #5C1F1B
analogous
#1B5C3F #1B585C #1B375C
triadic
#1B585C #5C1B58 #585C1B
tetradic
#1B585C #3F1B5C #5C1F1B #375C1B
square
#1B585C #3F1B5C #5C1F1B #375C1B
split-complementary
#1B585C #5C1B37 #5C3F1B
monochromatic
#071718 #0D2B2D #1B585C #29858B #37B3BB
Accessibility & contrast
On white
8.09
#1B585C on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.60
#1B585C on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1B585C
8.09:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1B585C | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1B585C | 1.00 | 8.09 | 2.60 | 8.09 |
| #FFFFFF | 8.09 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.60 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.09 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#51545C
Deuteranopia (green-blind)
#474D5C
Tritanopia (blue-blind)
#005B59
Achromatopsia (no color)
#505050
Design tokens & code
CSS
--color: #1b585c; /* rgb */ color: rgb(27, 88, 92); /* oklch */ color: oklch(42.4% 0.061 201.3);
Tailwind
colors: {
custom: {
50: '#62878a',
500: '#1b585c',
950: '#000000',
},
}SCSS
$custom: #1b585c; $custom-light: #62878a; $custom-dark: #000000;
JSON
{
"hex": "#1b585c",
"rgb": {
"r": 27,
"g": 88,
"b": 92
},
"hsl": {
"h": 183.692,
"s": 54.622,
"l": 23.333
},
"oklch": {
"l": 0.4239,
"c": 0.06107,
"h": 201.3
},
"luminance": 0.07985
}Semantic roles & 50–950 ramp
primary
#1B585C
secondary
#924641
accent
#534ADE
background
#F6F8F8
surface
#EBEFF0
border
#C6CACB
text
#050B0B
muted
#7A7C7C