#018B89
Closest named color: Dark Cyan (#008B8B). oklch(57.6% 0.098 193), rgb(1, 139, 137).
Aa
Black text reads best on this color (5.05:1).
About this color
#018B89 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 58%, its chroma 0.098 and its hue 193°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Cyan (#008B8B), ΔE 0.003 away. Black text reads best on it, at 5.05:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Dark Cyan (#008B8B) |
| Black text | 5.05:1 |
| White text | 4.15:1 |
Values
| HEX | #018B89 |
| RGB | rgb(1, 139, 137) |
| HSL | hsl(179, 99%, 27%) |
| OKLCH | oklch(57.6% 0.098 193) |
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 #018B89 | 4.15:1 | AA large text | Lc -73.5 | Content text, not long reading |
| Black text on #018B89 | 5.05:1 | AA | Lc 36.1 | Non-text elements, placeholder text |
| #018B89 text on white | 4.15:1 | AA large text | Lc 68.0 | Content text, not long reading |
| #018B89 text on black | 5.05:1 | AA | Lc -33.7 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEC
oklch(93.7% 0.013 190.9)
-
Step 200
200
#C8DFDD
oklch(88.6% 0.025 190.4)
-
Step 300
300
#A0CAC8
oklch(80.8% 0.044 192.7)
-
Step 400
400
#69AFAD
oklch(70.7% 0.071 193.3)
-
Step 500
500
#379B98
oklch(63.2% 0.091 192.3)
-
Step 600
600 (this color)
#018B89
oklch(57.6% 0.098 193)
-
Step 700
700
#006F6E
oklch(49% 0.084 193.7)
-
Step 800
800
#005B5A
oklch(42.6% 0.073 193.5)
-
Step 900
900
#0E4B4A
oklch(37.6% 0.059 193.3)
-
Step 950
950
#0C2C2B
oklch(26.9% 0.037 192.3)
#018B89 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) | #818389 | 0.103 |
| Deuteranopia (no green cones) | #71778A | 0.097 |
| Tritanopia (no blue cones) | #00908A | 0.015 |
| Achromatopsia (no color) | #7C7C7C | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #018B89
#018B89
oklch(57.6% 0.098 193)
- #AB5F68
#AB5F68
oklch(57.5% 0.099 13.1)
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 #018B89, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Cyan #008B8B ΔE 0.003
- Teal Green #0A9396 ΔE 0.028
- Teal #008080 ΔE 0.033
- Teal Blue #01889F ΔE 0.039
- Dusty Teal #4C9085 ΔE 0.043
- Blue Green #0F9B8E ΔE 0.048
- Sea #3C9992 ΔE 0.052
- Bluegreen #017A79 ΔE 0.052
Use #018B89 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.