#317B01
Closest named color: Tree Green (#2A7E19). oklch(51.5% 0.158 137.8), rgb(49, 123, 1).
Aa
White text reads best on this color (5.29:1).
About this color
#317B01 is a medium-dark, vivid green. In OKLCH its lightness is 52%, its chroma 0.158 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tree Green (#2A7E19), ΔE 0.011 away. White text reads best on it, at 5.29:1.
| Hue family | Greens |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Tree Green (#2A7E19) |
| Black text | 3.96:1 |
| White text | 5.29:1 |
Values
| HEX | #317B01 |
| RGB | rgb(49, 123, 1) |
| HSL | hsl(96, 98%, 24%) |
| OKLCH | oklch(51.5% 0.158 137.8) |
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 #317B01 | 5.29:1 | AA | Lc -81.3 | Fine for body text |
| Black text on #317B01 | 3.96:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #317B01 text on white | 5.29:1 | AA | Lc 75.9 | Fine for body text |
| #317B01 text on black | 3.96:1 | AA large text | Lc -25.8 | 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
#E3EEDF
oklch(93.7% 0.023 137.2)
-
Step 200
200
#CCE0C5
oklch(88.4% 0.042 137.5)
-
Step 300
300
#A9CD9D
oklch(81% 0.076 137.9)
-
Step 400
400
#7AB265
oklch(70.6% 0.122 137.6)
-
Step 500
500
#559F37
oklch(63.2% 0.158 137.9)
-
Step 600
600
#388903
oklch(55.7% 0.17 137.8)
-
Step 700
700 (this color)
#317B01
oklch(51.5% 0.158 137.8)
-
Step 800
800
#245E01
oklch(42.6% 0.131 137.8)
-
Step 900
900
#234D0F
oklch(37.6% 0.102 137.6)
-
Step 950
950
#152D0B
oklch(26.8% 0.064 137.7)
#317B01 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) | #7F6F00 | 0.102 |
| Deuteranopia (no green cones) | #766917 | 0.101 |
| Tritanopia (no blue cones) | #2A7668 | 0.112 |
| Achromatopsia (no color) | #6B6B6B | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #317B01
#317B01
oklch(51.5% 0.158 137.8)
- #8C43A1
#8C43A1
oklch(51.5% 0.159 318.1)
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 #317B01, closest first.
No curated palette has a color within ΔE 0.04 of #317B01.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tree Green #2A7E19 ΔE 0.011
- Dark Grass Green #388004 ΔE 0.017
- Green #008000 ΔE 0.023
- Forest Green #228B22 ΔE 0.046
- Jungle Green #048243 ΔE 0.047
- Emerald Green #028F1E ΔE 0.058
- Olive Green #677A04 ΔE 0.061
- Murky Green #6C7A0E ΔE 0.069
Use #317B01 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.