#257121
Closest named color: Tree Green (#2A7E19). oklch(48.4% 0.136 142.4), rgb(37, 113, 33).
Aa
White text reads best on this color (6.06:1).
About this color
#257121 is a medium-dark, moderately saturated green. In OKLCH its lightness is 48%, its chroma 0.136 and its hue 142°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tree Green (#2A7E19), ΔE 0.043 away. White text reads best on it, at 6.06:1.
| Hue family | Greens |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.136) |
| Temperature | in between |
| Nearest name | Tree Green (#2A7E19) |
| Black text | 3.46:1 |
| White text | 6.06:1 |
Values
| HEX | #257121 |
| RGB | rgb(37, 113, 33) |
| HSL | hsl(117, 55%, 29%) |
| OKLCH | oklch(48.4% 0.136 142.4) |
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 #257121 | 6.06:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #257121 | 3.46:1 | AA large text | Lc 24.1 | Dividers and decoration only |
| #257121 text on white | 6.06:1 | AA | Lc 79.9 | Fine for body text |
| #257121 text on black | 3.46:1 | AA large text | Lc -21.9 | 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
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E3EDE2
oklch(93.6% 0.018 142.8)
-
Step 200
200
#CCE0CA
oklch(88.6% 0.037 142.7)
-
Step 300
300
#A9CCA5
oklch(80.9% 0.066 142.2)
-
Step 400
400
#79B274
oklch(70.8% 0.107 142.5)
-
Step 500
500
#549E4F
oklch(63.2% 0.135 142.5)
-
Step 600
600
#368831
oklch(55.7% 0.147 142.4)
-
Step 700
700 (this color)
#257121
oklch(48.4% 0.136 142.4)
-
Step 800
800
#235E1F
oklch(42.8% 0.113 142.3)
-
Step 900
900
#224D1F
oklch(37.7% 0.088 142.4)
-
Step 950
950
#152D13
oklch(27% 0.055 142.3)
#257121 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) | #746616 | 0.097 |
| Deuteranopia (no green cones) | #6A6028 | 0.096 |
| Tritanopia (no blue cones) | #166E61 | 0.088 |
| Achromatopsia (no color) | #626262 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #257121
#257121
oklch(48.4% 0.136 142.4)
- #82408B
#82408B
oklch(48.5% 0.136 322.7)
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 #257121, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tree Green #2A7E19 ΔE 0.043
- Dark Green #006400 ΔE 0.050
- Jungle Green #048243 ΔE 0.054
- Green #008000 ΔE 0.054
- Dark Grass Green #388004 ΔE 0.055
- Camouflage Green #4B6113 ΔE 0.055
- Dark Olive Green #556B2F ΔE 0.057
- Camo Green #526525 ΔE 0.058
Use #257121 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.