#218989
Closest named color: Dark Cyan (#008B8B). oklch(57.5% 0.09 194.9), rgb(33, 137, 137).
Aa
Black text reads best on this color (5.00:1).
About this color
#218989 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 57%, its chroma 0.090 and its hue 195°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Cyan (#008B8B), ΔE 0.009 away. Black text reads best on it, at 5.00:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Dark Cyan (#008B8B) |
| Black text | 5.00:1 |
| White text | 4.19:1 |
Values
| HEX | #218989 |
| RGB | rgb(33, 137, 137) |
| HSL | hsl(180, 61%, 33%) |
| OKLCH | oklch(57.5% 0.09 194.9) |
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 #218989 | 4.19:1 | AA large text | Lc -74.1 | Content text, not long reading |
| Black text on #218989 | 5.00:1 | AA | Lc 35.5 | Non-text elements, placeholder text |
| #218989 text on white | 4.19:1 | AA large text | Lc 68.6 | Content text, not long reading |
| #218989 text on black | 5.00:1 | AA | Lc -33.1 | 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 600.
-
Step 50
50
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E1ECEC
oklch(93.5% 0.012 197)
-
Step 200
200
#C9DEDE
oklch(88.5% 0.022 196.8)
-
Step 300
300
#A3C9C9
oklch(80.8% 0.04 196.4)
-
Step 400
400
#6FAEAD
oklch(70.8% 0.065 194.5)
-
Step 500
500
#439999
oklch(63.1% 0.082 195.3)
-
Step 600
600 (this color)
#218989
oklch(57.5% 0.09 194.9)
-
Step 700
700
#026F6F
oklch(49.1% 0.083 194.8)
-
Step 800
800
#0C5B5B
oklch(42.8% 0.069 194.9)
-
Step 900
900
#164A4A
oklch(37.5% 0.054 195.1)
-
Step 950
950
#0F2C2C
oklch(27.1% 0.035 195.3)
#218989 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) | #808289 | 0.094 |
| Deuteranopia (no green cones) | #71778A | 0.088 |
| Tritanopia (no blue cones) | #008E89 | 0.016 |
| Achromatopsia (no color) | #7C7C7C | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #218989
#218989
oklch(57.5% 0.09 194.9)
- #A76268
#A76268
oklch(57.5% 0.09 14.7)
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 #218989, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Cyan #008B8B ΔE 0.009
- Teal Green #0A9396 ΔE 0.030
- Teal #008080 ΔE 0.032
- Teal Blue #01889F ΔE 0.036
- Dusty Teal #4C9085 ΔE 0.040
- Bluegreen #017A79 ΔE 0.050
- Ocean #017B92 ΔE 0.052
- Sea #3C9992 ΔE 0.053
Use #218989 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.