#1B574E#1B574E
#1B574E is a dark, moderate teal. Relative luminance 0.076; OKLCH L 41.6% C 0.063 H 181.4°. Best body text is #FFFFFF at 8.33:1 contrast (WCAG AA passes).
Color values
| HEX | #1B574E |
|---|---|
| RGB | rgb(27, 87, 78) |
| HSL | hsl(171, 53%, 22%) |
| HSV | hsv(171, 69%, 34%) |
| CMYK | cmyk(69%, 0%, 10.3%, 65.9%) |
| CIE-LAB | lab(33.13, -21.55, -0.42) |
| CIE-LCH | lch(33.13, 21.55, 181.11°) |
| OKLab | oklab(41.57% -0.0628 -0.0015) |
| OKLCH | oklch(41.57% 0.063 181.4) |
| XYZ | xyz(5.2347, 7.5989, 8.3971) |
| Luminance | 0.0760 (WCAG relative) |
| Temperature | cool |
| Family | teal |
Closest named colors
Dark Blue Green
#005249
ΔE00 2.42
Dark Turquoise
#045C5A
ΔE00 3.91
Dark Green Blue
#1F6357
ΔE00 4.09
Dark Teal
#014D4E
ΔE00 5.65
Deep Teal
#00555A
ΔE00 6.62
Darkslategray
#2F4F4F
ΔE00 7.49
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1B574E #571B24
analogous
#1B5730 #1B574E #1B4257
triadic
#1B574E #4E1B57 #574E1B
tetradic
#1B574E #301B57 #571B24 #42571B
square
#1B574E #301B57 #571B24 #42571B
split-complementary
#1B574E #571B42 #57301B
monochromatic
#071715 #0D2824 #1B574E #298678 #38B4A2
Accessibility & contrast
On white
8.33
#1B574E on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.52
#1B574E on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1B574E
8.33:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1B574E | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1B574E | 1.00 | 8.33 | 2.52 | 8.33 |
| #FFFFFF | 8.33 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.52 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.33 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#53524E
Deuteranopia (green-blind)
#4A4B4F
Tritanopia (blue-blind)
#005954
Achromatopsia (no color)
#4E4E4E
Design tokens & code
CSS
--color: #1b574e; /* rgb */ color: rgb(27, 87, 78); /* oklch */ color: oklch(41.6% 0.063 181.4);
Tailwind
colors: {
custom: {
50: '#60877f',
500: '#1b574e',
950: '#000000',
},
}SCSS
$custom: #1b574e; $custom-light: #60877f; $custom-dark: #000000;
JSON
{
"hex": "#1b574e",
"rgb": {
"r": 27,
"g": 87,
"b": 78
},
"hsl": {
"h": 171,
"s": 52.632,
"l": 22.353
},
"oklch": {
"l": 0.41571,
"c": 0.06278,
"h": 181.4
},
"luminance": 0.07599
}Semantic roles & 50–950 ramp
primary
#1B574E
secondary
#8D414C
accent
#4C61DC
background
#F5F8F7
surface
#EAEFEE
border
#C6CAC9
text
#050B0A
muted
#797C7C