#39B133
Closest named color: Shamrock (#01B44C). oklch(66.9% 0.195 142.4), rgb(57, 177, 51).
Aa
Black text reads best on this color (7.51:1).
About this color
#39B133 is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.195 and its hue 142°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Shamrock (#01B44C), ΔE 0.022 away. Black text reads best on it, at 7.51:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.195) |
| Temperature | in between |
| Nearest name | Shamrock (#01B44C) |
| Black text | 7.51:1 |
| White text | 2.79:1 |
Values
| HEX | #39B133 |
| RGB | rgb(57, 177, 51) |
| HSL | hsl(117, 55%, 45%) |
| OKLCH | oklch(66.9% 0.195 142.4) |
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 #39B133 | 2.79:1 | Fails | Lc -58.6 | Large or bold text, headings |
| Black text on #39B133 | 7.51:1 | AAA | Lc 50.7 | Large or bold text, headings |
| #39B133 text on white | 2.79:1 | Fails | Lc 53.4 | Large or bold text, headings |
| #39B133 text on black | 7.51:1 | AAA | Lc -48.5 | Large or bold text, headings |
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 400.
-
Step 50
50
#EFF8EE
oklch(97% 0.016 142.6)
-
Step 100
100
#DDF0DB
oklch(93.5% 0.034 142.6)
-
Step 200
200
#C0E5BC
oklch(88.4% 0.068 142.4)
-
Step 300
300
#92D58B
oklch(81% 0.122 142.1)
-
Step 400
400 (this color)
#39B133
oklch(66.9% 0.195 142.4)
-
Step 500
500
#04A700
oklch(63.1% 0.214 142.4)
-
Step 600
600
#038C00
oklch(55.5% 0.188 142.4)
-
Step 700
700
#027600
oklch(49% 0.167 142.4)
-
Step 800
800
#016100
oklch(42.7% 0.145 142.4)
-
Step 900
900
#015100
oklch(37.7% 0.128 142.4)
-
Step 950
950
#003100
oklch(27.1% 0.092 142.5)
#39B133 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) | #B5A01F | 0.138 |
| Deuteranopia (no green cones) | #A7973F | 0.138 |
| Tritanopia (no blue cones) | #1CAC98 | 0.125 |
| Achromatopsia (no color) | #9B9B9B | 0.196 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39B133
#39B133
oklch(66.9% 0.195 142.4)
- #CB64DA
#CB64DA
oklch(67% 0.195 322.4)
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 #39B133, closest first.
No curated palette has a color within ΔE 0.04 of #39B133.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Shamrock #01B44C ΔE 0.022
- Medium Green #39AD48 ΔE 0.024
- Grass #5CAC2D ΔE 0.026
- Leafy Green #51B73B ΔE 0.026
- Kelly Green #02AB2E ΔE 0.027
- Leaf Green #5CA904 ΔE 0.030
- Mid Green #50A747 ΔE 0.041
- Shamrock Green #02C14D ΔE 0.044
Use #39B133 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.