#257C01
Closest named color: Tree Green (#2A7E19). oklch(51.4% 0.164 139.8), rgb(37, 124, 1).
Aa
White text reads best on this color (5.30:1).
About this color
#257C01 is a medium-dark, vivid green. In OKLCH its lightness is 51%, its chroma 0.164 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tree Green (#2A7E19), ΔE 0.012 away. White text reads best on it, at 5.30:1.
| Hue family | Greens |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.164) |
| Temperature | in between |
| Nearest name | Tree Green (#2A7E19) |
| Black text | 3.96:1 |
| White text | 5.30:1 |
Values
| HEX | #257C01 |
| RGB | rgb(37, 124, 1) |
| HSL | hsl(102, 98%, 25%) |
| OKLCH | oklch(51.4% 0.164 139.8) |
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 #257C01 | 5.30:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #257C01 | 3.96:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #257C01 text on white | 5.30:1 | AA | Lc 75.9 | Fine for body text |
| #257C01 text on black | 3.96:1 | 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
#E2EEDF
oklch(93.6% 0.024 139.4)
-
Step 200
200
#CAE1C5
oklch(88.5% 0.045 140.1)
-
Step 300
300
#A6CE9D
oklch(81% 0.08 139.9)
-
Step 400
400
#74B466
oklch(70.8% 0.127 140)
-
Step 500
500
#4DA038
oklch(63.1% 0.162 139.8)
-
Step 600
600
#2B8A04
oklch(55.6% 0.177 139.8)
-
Step 700
700 (this color)
#257C01
oklch(51.4% 0.164 139.8)
-
Step 800
800
#1B5F01
oklch(42.6% 0.136 139.7)
-
Step 900
900
#1D4E10
oklch(37.6% 0.106 139.9)
-
Step 950
950
#122E0C
oklch(27% 0.067 140.3)
#257C01 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) | #807000 | 0.111 |
| Deuteranopia (no green cones) | #766917 | 0.109 |
| Tritanopia (no blue cones) | #157868 | 0.110 |
| Achromatopsia (no color) | #6B6B6B | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #257C01
#257C01
oklch(51.4% 0.164 139.8)
- #8F40A1
#8F40A1
oklch(51.5% 0.165 319.8)
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 #257C01, closest first.
No curated palette has a color within ΔE 0.04 of #257C01.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tree Green #2A7E19 ΔE 0.012
- Green #008000 ΔE 0.016
- Dark Grass Green #388004 ΔE 0.020
- Forest Green #228B22 ΔE 0.045
- Jungle Green #048243 ΔE 0.047
- Emerald Green #028F1E ΔE 0.055
- Kelley Green #009337 ΔE 0.068
- Olive Green #677A04 ΔE 0.069
Use #257C01 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.