#188D7A
Closest named color: Dark Cyan (#008B8B). oklch(57.8% 0.101 178.2), rgb(24, 141, 122).
Aa
Black text reads best on this color (5.12:1).
About this color
#188D7A is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 58%, its chroma 0.101 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Cyan (#008B8B), ΔE 0.029 away. Black text reads best on it, at 5.12:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Dark Cyan (#008B8B) |
| Black text | 5.12:1 |
| White text | 4.09:1 |
Values
| HEX | #188D7A |
| RGB | rgb(24, 141, 122) |
| HSL | hsl(170, 71%, 32%) |
| OKLCH | oklch(57.8% 0.101 178.2) |
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 #188D7A | 4.09:1 | AA large text | Lc -73.2 | Content text, not long reading |
| Black text on #188D7A | 5.12:1 | AA | Lc 36.4 | Non-text elements, placeholder text |
| #188D7A text on white | 4.09:1 | AA large text | Lc 67.7 | Content text, not long reading |
| #188D7A text on black | 5.12:1 | AA | Lc -34.0 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDEA
oklch(93.6% 0.013 179.5)
-
Step 200
200
#C8DFD9
oklch(88.5% 0.026 178.3)
-
Step 300
300
#A2CBC1
oklch(81% 0.046 178.6)
-
Step 400
400
#6CB0A1
oklch(70.7% 0.073 178.4)
-
Step 500
500
#3E9C8A
oklch(63.2% 0.093 178.4)
-
Step 600
600 (this color)
#188D7A
oklch(57.8% 0.101 178.2)
-
Step 700
700
#007161
oklch(49.1% 0.09 178.4)
-
Step 800
800
#025D4F
oklch(42.8% 0.078 177.7)
-
Step 900
900
#134C42
oklch(37.7% 0.06 178.7)
-
Step 950
950
#0E2D26
oklch(27.1% 0.039 176)
#188D7A 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) | #878479 | 0.106 |
| Deuteranopia (no green cones) | #78797C | 0.101 |
| Tritanopia (no blue cones) | #008F87 | 0.019 |
| Achromatopsia (no color) | #7D7D7D | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #188D7A
#188D7A
oklch(57.8% 0.101 178.2)
- #A95F79
#A95F79
oklch(57.8% 0.101 358.3)
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 #188D7A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Cyan #008B8B ΔE 0.029
- Viridian #1E9167 ΔE 0.034
- Dusty Teal #4C9085 ΔE 0.040
- Teal Green #0A9396 ΔE 0.041
- Blue Green #0F9B8E ΔE 0.044
- Teal #008080 ΔE 0.046
- Ocean Green #3D9973 ΔE 0.048
- Sea Green #2E8B57 ΔE 0.049
Use #188D7A 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.