#258B00
Closest named color: Forest Green (#228B22). oklch(55.7% 0.181 140.4), rgb(37, 139, 0).
Aa
Black text reads best on this color (4.77:1).
About this color
#258B00 is a medium-dark, vivid green. In OKLCH its lightness is 56%, its chroma 0.181 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest Green (#228B22), ΔE 0.014 away. Black text reads best on it, at 4.77:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.181) |
| Temperature | in between |
| Nearest name | Forest Green (#228B22) |
| Black text | 4.77:1 |
| White text | 4.40:1 |
Values
| HEX | #258B00 |
| RGB | rgb(37, 139, 0) |
| HSL | hsl(104, 100%, 27%) |
| OKLCH | oklch(55.7% 0.181 140.4) |
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 #258B00 | 4.40:1 | AA large text | Lc -75.4 | Fine for body text |
| Black text on #258B00 | 4.77:1 | AA | Lc 34.1 | Non-text elements, placeholder text |
| #258B00 text on white | 4.40:1 | AA large text | Lc 70.0 | Content text, not long reading |
| #258B00 text on black | 4.77:1 | AA | Lc -31.7 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F2F7F0
oklch(97% 0.011 136.6)
-
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
#A5CE9C
oklch(80.9% 0.081 140)
-
Step 400
400
#72B465
oklch(70.6% 0.13 140.4)
-
Step 500
500
#49A136
oklch(63.2% 0.167 140.3)
-
Step 600
600 (this color)
#258B00
oklch(55.7% 0.181 140.4)
-
Step 700
700
#1E7500
oklch(49.2% 0.159 140.3)
-
Step 800
800
#176000
oklch(42.8% 0.139 140.3)
-
Step 900
900
#1B4F0F
oklch(37.8% 0.109 140.4)
-
Step 950
950
#112E0B
oklch(26.9% 0.069 140.4)
#258B00 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) | #8F7D00 | 0.124 |
| Deuteranopia (no green cones) | #84751B | 0.123 |
| Tritanopia (no blue cones) | #0B8675 | 0.121 |
| Achromatopsia (no color) | #787878 | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #258B00
#258B00
oklch(55.7% 0.181 140.4)
- #A047B3
#A047B3
oklch(55.7% 0.18 320.2)
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 #258B00, closest first.
No curated palette has a color within ΔE 0.04 of #258B00.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest Green #228B22 ΔE 0.014
- Emerald Green #028F1E ΔE 0.014
- True Green #089404 ΔE 0.026
- Irish Green #019529 ΔE 0.030
- Kelley Green #009337 ΔE 0.033
- Dark Grass Green #388004 ΔE 0.034
- Green #008000 ΔE 0.038
- Tree Green #2A7E19 ΔE 0.043
Use #258B00 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.