#21B3AE#21B3AE
#21B3AE is a light, moderate teal. Relative luminance 0.356; OKLCH L 69.5% C 0.114 H 191.2°. Best body text is #000000 at 8.12:1 contrast (WCAG AA passes).
Color values
| HEX | #21B3AE |
|---|---|
| RGB | rgb(33, 179, 174) |
| HSL | hsl(178, 69%, 42%) |
| HSV | hsv(178, 82%, 70%) |
| CMYK | cmyk(81.6%, 0%, 2.8%, 29.8%) |
| CIE-LAB | lab(66.23, -36.72, -7.89) |
| CIE-LCH | lch(66.23, 37.56, 192.13°) |
| OKLab | oklab(69.52% -0.1117 -0.0221) |
| OKLCH | oklch(69.52% 0.114 191.2) |
| XYZ | xyz(24.3836, 35.6164, 45.6257) |
| Luminance | 0.3562 (WCAG relative) |
| Temperature | cool |
| Family | teal |
Closest named colors
Lightseagreen
#20B2AA
ΔE00 1.16
Topaz
#13BBAF
ΔE00 3.26
Tealish
#24BCA8
ΔE00 5.64
Turquoise (survey)
#06C2AC
ΔE00 6.86
Darkturquoise
#00CED1
ΔE00 7.70
Sea
#3C9992
ΔE00 8.00
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#21B3AE #B32126
analogous
#21B365 #21B3AE #216FB3
triadic
#21B3AE #AE21B3 #B3AE21
tetradic
#21B3AE #6521B3 #B32126 #6FB321
square
#21B3AE #6521B3 #B32126 #6FB321
split-complementary
#21B3AE #B3216F #B36521
monochromatic
#0E4C4A #177F7C #21B3AE #37DAD5 #6BE4E0
Accessibility & contrast
On white
2.58
#21B3AE on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
8.12
#21B3AE on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #21B3AE
8.12:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##21B3AE | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##21B3AE | 1.00 | 2.58 | 8.12 | 8.12 |
| #FFFFFF | 2.58 | 1.00 | 21.00 | 21.00 |
| #000000 | 8.12 | 21.00 | 1.00 | 1.00 |
| ##000000 | 8.12 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#A8A9AE
Deuteranopia (green-blind)
#949BAF
Tritanopia (blue-blind)
#00B8B1
Achromatopsia (no color)
#A1A1A1
Design tokens & code
CSS
--color: #21b3ae; /* rgb */ color: rgb(33, 179, 174); /* oklch */ color: oklch(69.5% 0.114 191.2);
Tailwind
colors: {
custom: {
50: '#7acac6',
500: '#21b3ae',
950: '#000000',
},
}SCSS
$custom: #21b3ae; $custom-light: #7acac6; $custom-dark: #000000;
JSON
{
"hex": "#21b3ae",
"rgb": {
"r": 33,
"g": 179,
"b": 174
},
"hsl": {
"h": 177.945,
"s": 68.868,
"l": 41.569
},
"oklch": {
"l": 0.69522,
"c": 0.11387,
"h": 191.2
},
"luminance": 0.3562
}Semantic roles & 50–950 ramp
primary
#21B3AE
secondary
#CA666A
accent
#3C42EC
background
#F8FCFC
surface
#EFF8F8
border
#CAD1D1
text
#0B1313
muted
#7C8282