#1B4744#1B4744
#1B4744 is a dark, muted teal. Relative luminance 0.052; OKLCH L 36.6% C 0.049 H 189.2°. Best body text is #FFFFFF at 10.34:1 contrast (WCAG AA passes).
Color values
| HEX | #1B4744 |
|---|---|
| RGB | rgb(27, 71, 68) |
| HSL | hsl(176, 45%, 19%) |
| HSV | hsv(176, 62%, 28%) |
| CMYK | cmyk(62%, 0%, 4.2%, 72.2%) |
| CIE-LAB | lab(27.18, -15.91, -2.77) |
| CIE-LCH | lch(27.18, 16.15, 189.88°) |
| OKLab | oklab(36.63% -0.048 -0.0077) |
| OKLCH | oklch(36.63% 0.049 189.2) |
| XYZ | xyz(3.7482, 5.1565, 6.2655) |
| Luminance | 0.0516 (WCAG relative) |
| Temperature | cool |
| Family | teal |
Closest named colors
Dark Teal
#014D4E
ΔE00 3.68
Darkslategray
#2F4F4F
ΔE00 4.61
Dark Blue Green
#005249
ΔE00 5.84
Deep Teal
#00555A
ΔE00 6.29
Dark Turquoise
#045C5A
ΔE00 7.55
Dark Green Blue
#1F6357
ΔE00 10.09
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1B4744 #471B1E
analogous
#1B472E #1B4744 #1B3447
triadic
#1B4744 #441B47 #47441B
tetradic
#1B4744 #2E1B47 #471B1E #34471B
square
#1B4744 #2E1B47 #471B1E #34471B
split-complementary
#1B4744 #471B34 #472E1B
monochromatic
#081615 #0A1B1A #1B4744 #2C736E #3DA099
Accessibility & contrast
On white
10.34
#1B4744 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.03
#1B4744 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1B4744
10.34:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1B4744 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1B4744 | 1.00 | 10.34 | 2.03 | 10.34 |
| #FFFFFF | 10.34 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.03 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.34 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#434344
Deuteranopia (green-blind)
#3C3E44
Tritanopia (blue-blind)
#004946
Achromatopsia (no color)
#404040
Design tokens & code
CSS
--color: #1b4744; /* rgb */ color: rgb(27, 71, 68); /* oklch */ color: oklch(36.6% 0.049 189.2);
Tailwind
colors: {
custom: {
50: '#5d7a77',
500: '#1b4744',
950: '#000000',
},
}SCSS
$custom: #1b4744; $custom-light: #5d7a77; $custom-dark: #000000;
JSON
{
"hex": "#1b4744",
"rgb": {
"r": 27,
"g": 71,
"b": 68
},
"hsl": {
"h": 175.909,
"s": 44.898,
"l": 19.216
},
"oklch": {
"l": 0.3663,
"c": 0.04858,
"h": 189.2
},
"luminance": 0.05157
}Semantic roles & 50–950 ramp
primary
#1B4744
secondary
#7D4145
accent
#535CD5
background
#F5F7F7
surface
#E9EDED
border
#C5C8C8
text
#040908
muted
#797B7B