#257C18
Closest named color: Tree Green (#2A7E19). oklch(51.5% 0.156 141.3), rgb(37, 124, 24).
Aa
White text reads best on this color (5.28:1).
About this color
#257C18 is a medium-dark, vivid green. In OKLCH its lightness is 52%, its chroma 0.156 and its hue 141°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tree Green (#2A7E19), ΔE 0.007 away. White text reads best on it, at 5.28:1.
| Hue family | Greens |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.156) |
| Temperature | in between |
| Nearest name | Tree Green (#2A7E19) |
| Black text | 3.97:1 |
| White text | 5.28:1 |
Values
| HEX | #257C18 |
| RGB | rgb(37, 124, 24) |
| HSL | hsl(112, 68%, 29%) |
| OKLCH | oklch(51.5% 0.156 141.3) |
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 #257C18 | 5.28:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #257C18 | 3.97:1 | AA large text | Lc 28.3 | Dividers and decoration only |
| #257C18 text on white | 5.28:1 | AA | Lc 75.8 | Fine for body text |
| #257C18 text on black | 3.97:1 | AA large text | Lc -25.9 | 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
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E2EEE0
oklch(93.6% 0.023 141.2)
-
Step 200
200
#CAE1C7
oklch(88.6% 0.043 142)
-
Step 300
300
#A6CDA0
oklch(80.8% 0.075 141.3)
-
Step 400
400
#74B36B
oklch(70.6% 0.121 141.3)
-
Step 500
500
#4DA041
oklch(63.2% 0.155 141.2)
-
Step 600
600
#2B8A1C
oklch(55.7% 0.168 141.3)
-
Step 700
700 (this color)
#257C18
oklch(51.5% 0.156 141.3)
-
Step 800
800
#1A5F10
oklch(42.7% 0.129 141.4)
-
Step 900
900
#1D4E16
oklch(37.7% 0.101 141.3)
-
Step 950
950
#122E0F
oklch(27% 0.064 141.8)
#257C18 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) | #7F7000 | 0.107 |
| Deuteranopia (no green cones) | #756924 | 0.108 |
| Tritanopia (no blue cones) | #127869 | 0.102 |
| Achromatopsia (no color) | #6C6C6C | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #257C18
#257C18
oklch(51.5% 0.156 141.3)
- #8F439C
#8F439C
oklch(51.6% 0.155 321.6)
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 #257C18, closest first.
No curated palette has a color within ΔE 0.04 of #257C18.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tree Green #2A7E19 ΔE 0.007
- Dark Grass Green #388004 ΔE 0.021
- Green #008000 ΔE 0.022
- Jungle Green #048243 ΔE 0.038
- Forest Green #228B22 ΔE 0.045
- Emerald Green #028F1E ΔE 0.056
- Olive Green #677A04 ΔE 0.066
- Kelley Green #009337 ΔE 0.067
Use #257C18 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.