#257C3C
Closest named color: Jungle Green (#048243). oklch(51.9% 0.128 148.5), rgb(37, 124, 60).
Aa
White text reads best on this color (5.21:1).
About this color
#257C3C is a medium-dark, moderately saturated green. In OKLCH its lightness is 52%, its chroma 0.128 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jungle Green (#048243), ΔE 0.018 away. White text reads best on it, at 5.21:1.
| Hue family | Greens |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 4.02:1 |
| White text | 5.21:1 |
Values
| HEX | #257C3C |
| RGB | rgb(37, 124, 60) |
| HSL | hsl(136, 54%, 32%) |
| OKLCH | oklch(51.9% 0.128 148.5) |
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 #257C3C | 5.21:1 | AA | Lc -80.9 | Fine for body text |
| Black text on #257C3C | 4.02:1 | AA large text | Lc 28.6 | Dividers and decoration only |
| #257C3C text on white | 5.21:1 | AA | Lc 75.5 | Fine for body text |
| #257C3C text on black | 4.02:1 | AA large text | Lc -26.2 | 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
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E2EDE3
oklch(93.5% 0.018 148.1)
-
Step 200
200
#CAE0CD
oklch(88.5% 0.035 149.3)
-
Step 300
300
#A6CCAB
oklch(80.9% 0.061 148.6)
-
Step 400
400
#74B27E
oklch(70.7% 0.099 148.5)
-
Step 500
500
#4C9E5D
oklch(63.1% 0.126 148.5)
-
Step 600
600
#298842
oklch(55.5% 0.137 148.4)
-
Step 700
700 (this color)
#257C3C
oklch(51.9% 0.128 148.5)
-
Step 800
800
#195E2C
oklch(42.7% 0.105 148.7)
-
Step 900
900
#1D4D28
oklch(37.7% 0.081 148.7)
-
Step 950
950
#122D18
oklch(26.9% 0.051 149.2)
#257C3C 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) | #7D7137 | 0.102 |
| Deuteranopia (no green cones) | #736A41 | 0.102 |
| Tritanopia (no blue cones) | #00796D | 0.073 |
| Achromatopsia (no color) | #6C6C6C | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #257C3C
#257C3C
oklch(51.9% 0.128 148.5)
- #8F4B8D
#8F4B8D
oklch(52% 0.127 328.3)
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 #257C3C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.018
- Tree Green #2A7E19 ΔE 0.034
- Dark Grass Green #388004 ΔE 0.045
- Green #008000 ΔE 0.052
- Sea Green #2E8B57 ΔE 0.052
- Forest Green #228B22 ΔE 0.058
- Dark Olive Green #556B2F ΔE 0.061
- Muddy Green #657432 ΔE 0.065
Use #257C3C 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.