#219981
Closest named color: Blue Green (#0F9B8E). oklch(61.4% 0.107 175.3), rgb(33, 153, 129).
Aa
Black text reads best on this color (5.93:1).
About this color
#219981 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 61%, its chroma 0.107 and its hue 175°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Green (#0F9B8E), ΔE 0.018 away. Black text reads best on it, at 5.93:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Blue Green (#0F9B8E) |
| Black text | 5.93:1 |
| White text | 3.53:1 |
Values
| HEX | #219981 |
| RGB | rgb(33, 153, 129) |
| HSL | hsl(168, 65%, 36%) |
| OKLCH | oklch(61.4% 0.107 175.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #219981 | 3.53:1 | AA large text | Lc -68.0 | Content text, not long reading |
| Black text on #219981 | 5.93:1 | AA | Lc 41.5 | Non-text elements, placeholder text |
| #219981 text on white | 3.53:1 | AA large text | Lc 62.5 | Content text, not long reading |
| #219981 text on black | 5.93:1 | AA | Lc -39.2 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E0EDE9
oklch(93.5% 0.015 175.7)
-
Step 200
200
#C6E0D8
oklch(88.5% 0.03 175.2)
-
Step 300
300
#9ECCBF
oklch(80.9% 0.052 175.8)
-
Step 400
400
#63B29E
oklch(70.7% 0.084 175.5)
-
Step 500
500 (this color)
#219981
oklch(61.4% 0.107 175.3)
-
Step 600
600
#008770
oklch(55.7% 0.105 175.1)
-
Step 700
700
#00715E
oklch(49% 0.092 175.6)
-
Step 800
800
#005D4D
oklch(42.7% 0.08 175.6)
-
Step 900
900
#024D40
oklch(37.6% 0.069 176.2)
-
Step 950
950
#082D25
oklch(26.9% 0.044 175.4)
#219981 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #938F80 | 0.112 |
| Deuteranopia (no green cones) | #848483 | 0.107 |
| Tritanopia (no blue cones) | #009B92 | 0.024 |
| Achromatopsia (no color) | #888888 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #219981
#219981
oklch(61.4% 0.107 175.3)
- #B66887
#B66887
oklch(61.4% 0.106 355.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #219981, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Green #0F9B8E ΔE 0.018
- Persian Green #2A9D8F ΔE 0.023
- Ocean Green #3D9973 ΔE 0.023
- Sea #3C9992 ΔE 0.032
- Dusty Teal #4C9085 ΔE 0.038
- Viridian #1E9167 ΔE 0.039
- Teal Green #0A9396 ΔE 0.042
- Grey Teal #5E9B8A ΔE 0.048
Use #219981 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.