#37931D
Closest named color: Irish Green (#019529). oklch(58.6% 0.173 140), rgb(55, 147, 29).
Aa
Black text reads best on this color (5.35:1).
About this color
#37931D is a medium-dark, vivid green. In OKLCH its lightness is 59%, its chroma 0.173 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Irish Green (#019529), ΔE 0.019 away. Black text reads best on it, at 5.35:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.173) |
| Temperature | in between |
| Nearest name | Irish Green (#019529) |
| Black text | 5.35:1 |
| White text | 3.92:1 |
Values
| HEX | #37931D |
| RGB | rgb(55, 147, 29) |
| HSL | hsl(107, 67%, 35%) |
| OKLCH | oklch(58.6% 0.173 140) |
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 #37931D | 3.92:1 | AA large text | Lc -71.7 | Content text, not long reading |
| Black text on #37931D | 5.35:1 | AA | Lc 37.9 | Non-text elements, placeholder text |
| #37931D text on white | 3.92:1 | AA large text | Lc 66.2 | Content text, not long reading |
| #37931D text on black | 5.35:1 | AA | Lc -35.4 | 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
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E2EEE0
oklch(93.6% 0.023 141.2)
-
Step 200
200
#CBE1C6
oklch(88.6% 0.043 139.9)
-
Step 300
300
#A6CE9E
oklch(81% 0.079 140.4)
-
Step 400
400
#75B367
oklch(70.6% 0.124 139.9)
-
Step 500
500
#4EA03A
oklch(63.2% 0.16 139.9)
-
Step 600
600 (this color)
#37931D
oklch(58.6% 0.173 140)
-
Step 700
700
#207400
oklch(49% 0.158 140)
-
Step 800
800
#1C5F06
oklch(42.7% 0.133 140)
-
Step 900
900
#1E4E12
oklch(37.7% 0.104 140)
-
Step 950
950
#132E0C
oklch(27.1% 0.066 139.6)
#37931D 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) | #978500 | 0.116 |
| Deuteranopia (no green cones) | #8C7E2B | 0.116 |
| Tritanopia (no blue cones) | #2A8E7D | 0.117 |
| Achromatopsia (no color) | #808080 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37931D
#37931D
oklch(58.6% 0.173 140)
- #A753BA
#A753BA
oklch(58.5% 0.172 319.9)
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 #37931D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Irish Green #019529 ΔE 0.019
- True Green #089404 ΔE 0.024
- Kelley Green #009337 ΔE 0.024
- Emerald Green #028F1E ΔE 0.026
- Grass Green #3F9B0B ΔE 0.027
- Forest Green #228B22 ΔE 0.029
- Grassy Green #419C03 ΔE 0.031
- Sap Green #5C8B15 ΔE 0.037
Use #37931D 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.