#398B01
Closest named color: Forest Green (#228B22). oklch(56.3% 0.173 137.7), rgb(57, 139, 1).
Aa
Black text reads best on this color (4.86:1).
About this color
#398B01 is a medium-dark, vivid green. In OKLCH its lightness is 56%, its chroma 0.173 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest Green (#228B22), ΔE 0.017 away. Black text reads best on it, at 4.86:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.173) |
| Temperature | in between |
| Nearest name | Forest Green (#228B22) |
| Black text | 4.86:1 |
| White text | 4.31:1 |
Values
| HEX | #398B01 |
| RGB | rgb(57, 139, 1) |
| HSL | hsl(96, 99%, 27%) |
| OKLCH | oklch(56.3% 0.173 137.7) |
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 #398B01 | 4.31:1 | AA large text | Lc -74.9 | Content text, not long reading |
| Black text on #398B01 | 4.86:1 | AA | Lc 34.7 | Non-text elements, placeholder text |
| #398B01 text on white | 4.31:1 | AA large text | Lc 69.4 | Content text, not long reading |
| #398B01 text on black | 4.86:1 | AA | Lc -32.2 | 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
#E3EEDF
oklch(93.7% 0.023 137.2)
-
Step 200
200
#CCE0C5
oklch(88.4% 0.042 137.5)
-
Step 300
300
#A9CD9C
oklch(80.9% 0.077 137.5)
-
Step 400
400
#79B364
oklch(70.8% 0.125 137.8)
-
Step 500
500
#559F35
oklch(63.2% 0.159 137.7)
-
Step 600
600 (this color)
#398B01
oklch(56.3% 0.173 137.7)
-
Step 700
700
#2E7300
oklch(49.1% 0.151 137.7)
-
Step 800
800
#245E00
oklch(42.6% 0.131 137.7)
-
Step 900
900
#224E0E
oklch(37.8% 0.104 137.9)
-
Step 950
950
#152E0B
oklch(27.2% 0.066 137.9)
#398B01 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) | #907E00 | 0.112 |
| Deuteranopia (no green cones) | #86771B | 0.111 |
| Tritanopia (no blue cones) | #328675 | 0.120 |
| Achromatopsia (no color) | #7A7A7A | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #398B01
#398B01
oklch(56.3% 0.173 137.7)
- #9E4DB6
#9E4DB6
oklch(56.4% 0.173 317.9)
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 #398B01, closest first.
No curated palette has a color within ΔE 0.04 of #398B01.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest Green #228B22 ΔE 0.017
- Emerald Green #028F1E ΔE 0.022
- True Green #089404 ΔE 0.031
- Irish Green #019529 ΔE 0.031
- Kelley Green #009337 ΔE 0.033
- Dark Grass Green #388004 ΔE 0.034
- Sap Green #5C8B15 ΔE 0.037
- Tree Green #2A7E19 ΔE 0.045
Use #398B01 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.