#187B57
Closest named color: Jungle Green (#048243). oklch(51.9% 0.105 163), rgb(24, 123, 87).
Aa
White text reads best on this color (5.23:1).
About this color
#187B57 is a medium-dark, moderately saturated green. In OKLCH its lightness is 52%, its chroma 0.105 and its hue 163°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jungle Green (#048243), ΔE 0.041 away. White text reads best on it, at 5.23:1.
| Hue family | Greens |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.105) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 4.00:1 |
| White text | 5.23:1 |
Values
| HEX | #187B57 |
| RGB | rgb(24, 123, 87) |
| HSL | hsl(158, 67%, 29%) |
| OKLCH | oklch(51.9% 0.105 163) |
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 #187B57 | 5.23:1 | AA | Lc -81.0 | Fine for body text |
| Black text on #187B57 | 4.00:1 | AA large text | Lc 28.5 | Dividers and decoration only |
| #187B57 text on white | 5.23:1 | AA | Lc 75.6 | Fine for body text |
| #187B57 text on black | 4.00:1 | AA large text | Lc -26.1 | Dividers and decoration only |
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 700.
-
Step 50
50
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E2EDE7
oklch(93.6% 0.014 162.5)
-
Step 200
200
#C9DFD4
oklch(88.4% 0.028 164.3)
-
Step 300
300
#A4CBB7
oklch(80.8% 0.05 162.8)
-
Step 400
400
#70B192
oklch(70.8% 0.081 162.7)
-
Step 500
500
#449D77
oklch(63.1% 0.104 162.8)
-
Step 600
600
#1A8760
oklch(55.5% 0.112 163.2)
-
Step 700
700 (this color)
#187B57
oklch(51.9% 0.105 163)
-
Step 800
800
#0F5D41
oklch(42.6% 0.086 163.2)
-
Step 900
900
#174D37
oklch(37.8% 0.068 162.7)
-
Step 950
950
#102D20
oklch(27% 0.043 162.1)
#187B57 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) | #797155 | 0.102 |
| Deuteranopia (no green cones) | #6D6959 | 0.098 |
| Tritanopia (no blue cones) | #007B71 | 0.040 |
| Achromatopsia (no color) | #6C6C6C | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #187B57
#187B57
oklch(51.9% 0.105 163)
- #914E78
#914E78
oklch(51.8% 0.105 343.1)
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 #187B57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.041
- Sea Green #2E8B57 ΔE 0.054
- Bluegreen #017A79 ΔE 0.054
- Dark Aquamarine #017371 ΔE 0.055
- Deep Turquoise #017374 ΔE 0.059
- Teal #008080 ΔE 0.060
- Dark Sage #598556 ΔE 0.065
- Deep Aqua #08787F ΔE 0.066
Use #187B57 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.