#39B23F
Closest named color: Shamrock (#01B44C). oklch(67.3% 0.188 143.8), rgb(57, 178, 63).
Aa
Black text reads best on this color (7.61:1).
About this color
#39B23F is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.188 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Shamrock (#01B44C), ΔE 0.016 away. Black text reads best on it, at 7.61:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.188) |
| Temperature | in between |
| Nearest name | Shamrock (#01B44C) |
| Black text | 7.61:1 |
| White text | 2.75:1 |
Values
| HEX | #39B23F |
| RGB | rgb(57, 178, 63) |
| HSL | hsl(123, 51%, 46%) |
| OKLCH | oklch(67.3% 0.188 143.8) |
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 #39B23F | 2.75:1 | Fails | Lc -58.0 | Large or bold text, headings |
| Black text on #39B23F | 7.61:1 | AAA | Lc 51.2 | Large or bold text, headings |
| #39B23F text on white | 2.75:1 | Fails | Lc 52.8 | Large or bold text, headings |
| #39B23F text on black | 7.61:1 | AAA | Lc -49.1 | 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
#EFF8EF
oklch(97% 0.015 145.5)
-
Step 100
100
#DDF0DC
oklch(93.6% 0.033 143.9)
-
Step 200
200
#C0E5BE
oklch(88.5% 0.066 143.7)
-
Step 300
300
#91D58F
oklch(81% 0.119 143.7)
-
Step 400
400 (this color)
#39B23F
oklch(67.3% 0.188 143.8)
-
Step 500
500
#00A71F
oklch(63.2% 0.206 143.8)
-
Step 600
600
#008C19
oklch(55.6% 0.181 143.9)
-
Step 700
700
#007613
oklch(49.1% 0.16 143.8)
-
Step 800
800
#00610E
oklch(42.8% 0.139 143.9)
-
Step 900
900
#00510A
oklch(37.7% 0.123 143.9)
-
Step 950
950
#003004
oklch(26.8% 0.087 144)
#39B23F 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) | #B5A231 | 0.136 |
| Deuteranopia (no green cones) | #A79849 | 0.137 |
| Tritanopia (no blue cones) | #17AD9A | 0.118 |
| Achromatopsia (no color) | #9C9C9C | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39B23F
#39B23F
oklch(67.3% 0.188 143.8)
- #CC67D6
#CC67D6
oklch(67.3% 0.187 323.9)
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 #39B23F, closest first.
No curated palette has a color within ΔE 0.04 of #39B23F.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Shamrock #01B44C ΔE 0.016
- Medium Green #39AD48 ΔE 0.019
- Leafy Green #51B73B ΔE 0.023
- Grass #5CAC2D ΔE 0.026
- Kelly Green #02AB2E ΔE 0.032
- Leaf Green #5CA904 ΔE 0.034
- Mid Green #50A747 ΔE 0.037
- Cool Green #33B864 ΔE 0.037
Use #39B23F 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.