#188E6D
Closest named color: Viridian (#1E9167). oklch(57.7% 0.111 168.2), rgb(24, 142, 109).
Aa
Black text reads best on this color (5.12:1).
About this color
#188E6D is a medium-dark, moderately saturated green. In OKLCH its lightness is 58%, its chroma 0.111 and its hue 168°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Viridian (#1E9167), ΔE 0.015 away. Black text reads best on it, at 5.12:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.111) |
| Temperature | in between |
| Nearest name | Viridian (#1E9167) |
| Black text | 5.12:1 |
| White text | 4.09:1 |
Values
| HEX | #188E6D |
| RGB | rgb(24, 142, 109) |
| HSL | hsl(163, 71%, 33%) |
| OKLCH | oklch(57.7% 0.111 168.2) |
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 #188E6D | 4.09:1 | AA large text | Lc -73.2 | Content text, not long reading |
| Black text on #188E6D | 5.12:1 | AA | Lc 36.4 | Non-text elements, placeholder text |
| #188E6D text on white | 4.09:1 | AA large text | Lc 67.7 | Content text, not long reading |
| #188E6D 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
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#E1EDE8
oklch(93.6% 0.014 169.2)
-
Step 200
200
#C8DFD6
oklch(88.4% 0.027 170.2)
-
Step 300
300
#A2CBBB
oklch(80.8% 0.049 169.3)
-
Step 400
400
#6CB197
oklch(70.7% 0.08 168)
-
Step 500
500
#3E9D7E
oklch(63.1% 0.102 168.4)
-
Step 600
600 (this color)
#188E6D
oklch(57.7% 0.111 168.2)
-
Step 700
700
#007256
oklch(49% 0.099 168.4)
-
Step 800
800
#035E46
oklch(42.8% 0.086 167.8)
-
Step 900
900
#134D3B
oklch(37.8% 0.067 168.1)
-
Step 950
950
#0E2D22
oklch(27% 0.042 167)
#188E6D 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) | #8A846B | 0.111 |
| Deuteranopia (no green cones) | #7C796F | 0.108 |
| Tritanopia (no blue cones) | #008F85 | 0.035 |
| Achromatopsia (no color) | #7D7D7D | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #188E6D
#188E6D
oklch(57.7% 0.111 168.2)
- #A95C85
#A95C85
oklch(57.7% 0.112 348)
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 #188E6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Viridian #1E9167 ΔE 0.015
- Sea Green #2E8B57 ΔE 0.029
- Ocean Green #3D9973 ΔE 0.041
- Light Forest Green #4F9153 ΔE 0.049
- Dark Cyan #008B8B ΔE 0.050
- Dark Sage #598556 ΔE 0.050
- Dusty Teal #4C9085 ΔE 0.053
- Blue Green #0F9B8E ΔE 0.053
Use #188E6D 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.