#13B645
Closest named color: Shamrock (#01B44C). oklch(67.8% 0.197 147), rgb(19, 182, 69).
Aa
Black text reads best on this color (7.80:1).
About this color
#13B645 is a medium-light, vivid green. In OKLCH its lightness is 68%, its chroma 0.197 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Shamrock (#01B44C), ΔE 0.010 away. Black text reads best on it, at 7.80:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.197) |
| Temperature | in between |
| Nearest name | Shamrock (#01B44C) |
| Black text | 7.80:1 |
| White text | 2.69:1 |
Values
| HEX | #13B645 |
| RGB | rgb(19, 182, 69) |
| HSL | hsl(138, 81%, 39%) |
| OKLCH | oklch(67.8% 0.197 147) |
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 #13B645 | 2.69:1 | Fails | Lc -56.7 | Large or bold text, headings |
| Black text on #13B645 | 7.80:1 | AAA | Lc 52.5 | Large or bold text, headings |
| #13B645 text on white | 2.69:1 | Fails | Lc 51.6 | Large or bold text, headings |
| #13B645 text on black | 7.80:1 | AAA | Lc -50.3 | 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
#EFF9EF
oklch(97.2% 0.017 145.4)
-
Step 100
100
#DBF1DC
oklch(93.6% 0.036 146.5)
-
Step 200
200
#BCE6BF
oklch(88.5% 0.069 146.9)
-
Step 300
300
#89D691
oklch(80.8% 0.123 146.8)
-
Step 400
400 (this color)
#13B645
oklch(67.8% 0.197 147)
-
Step 500
500
#00A63B
oklch(63.2% 0.188 146.9)
-
Step 600
600
#008B31
oklch(55.5% 0.165 147.1)
-
Step 700
700
#007528
oklch(49% 0.145 147.1)
-
Step 800
800
#00601F
oklch(42.6% 0.127 147)
-
Step 900
900
#005019
oklch(37.6% 0.111 147.2)
-
Step 950
950
#00300B
oklch(26.9% 0.08 146.8)
#13B645 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) | #B8A538 | 0.152 |
| Deuteranopia (no green cones) | #A8994F | 0.152 |
| Tritanopia (no blue cones) | #00B29E | 0.118 |
| Achromatopsia (no color) | #9E9E9E | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #13B645
#13B645
oklch(67.8% 0.197 147)
- #D463D6
#D463D6
oklch(67.8% 0.198 326.8)
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 #13B645, closest first.
No curated palette has a color within ΔE 0.04 of #13B645.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Shamrock #01B44C ΔE 0.010
- Medium Green #39AD48 ΔE 0.029
- Leafy Green #51B73B ΔE 0.029
- Shamrock Green #02C14D ΔE 0.031
- Kelly Green #02AB2E ΔE 0.035
- Cool Green #33B864 ΔE 0.037
- Grass #5CAC2D ΔE 0.041
- Leaf Green #5CA904 ΔE 0.047
Use #13B645 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.