#188E69
Closest named color: Viridian (#1E9167). oklch(57.6% 0.114 165.7), rgb(24, 142, 105).
Aa
Black text reads best on this color (5.11:1).
About this color
#188E69 is a medium-dark, moderately saturated green. In OKLCH its lightness is 58%, its chroma 0.114 and its hue 166°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Viridian (#1E9167), ΔE 0.011 away. Black text reads best on it, at 5.11:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.114) |
| Temperature | in between |
| Nearest name | Viridian (#1E9167) |
| Black text | 5.11:1 |
| White text | 4.10:1 |
Values
| HEX | #188E69 |
| RGB | rgb(24, 142, 105) |
| HSL | hsl(161, 71%, 33%) |
| OKLCH | oklch(57.6% 0.114 165.7) |
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 #188E69 | 4.10:1 | AA large text | Lc -73.3 | Content text, not long reading |
| Black text on #188E69 | 5.11:1 | AA | Lc 36.3 | Non-text elements, placeholder text |
| #188E69 text on white | 4.10:1 | AA large text | Lc 67.8 | Content text, not long reading |
| #188E69 text on black | 5.11:1 | AA | Lc -33.9 | 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
#E1EDE7
oklch(93.5% 0.015 164.7)
-
Step 200
200
#C9DFD5
oklch(88.4% 0.027 166.7)
-
Step 300
300
#A2CCB9
oklch(81% 0.052 165.8)
-
Step 400
400
#6DB195
oklch(70.7% 0.081 166.1)
-
Step 500
500
#3E9D7A
oklch(63% 0.105 165.7)
-
Step 600
600 (this color)
#188E69
oklch(57.6% 0.114 165.7)
-
Step 700
700
#007353
oklch(49.2% 0.103 165.6)
-
Step 800
800
#035E43
oklch(42.8% 0.089 165.2)
-
Step 900
900
#134D39
oklch(37.7% 0.069 165.8)
-
Step 950
950
#0E2D21
oklch(27% 0.043 165.1)
#188E69 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) | #8B8367 | 0.113 |
| Deuteranopia (no green cones) | #7D796B | 0.109 |
| Tritanopia (no blue cones) | #008E84 | 0.041 |
| Achromatopsia (no color) | #7D7D7D | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #188E69
#188E69
oklch(57.6% 0.114 165.7)
- #A85B88
#A85B88
oklch(57.5% 0.115 345.3)
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 #188E69, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Viridian #1E9167 ΔE 0.011
- Sea Green #2E8B57 ΔE 0.024
- Ocean Green #3D9973 ΔE 0.042
- Light Forest Green #4F9153 ΔE 0.045
- Dark Sage #598556 ΔE 0.048
- Fern Green #548D44 ΔE 0.055
- Dark Cyan #008B8B ΔE 0.055
- Jungle Green #048243 ΔE 0.057
Use #188E69 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.