#6BB421
Closest named color: Leafy Green (#51B73B). oklch(69.5% 0.186 133.4), rgb(107, 180, 33).
Aa
Black text reads best on this color (8.17:1).
About this color
#6BB421 is a medium-light, vivid green. In OKLCH its lightness is 70%, its chroma 0.186 and its hue 133°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Leafy Green (#51B73B), ΔE 0.023 away. Black text reads best on it, at 8.17:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.186) |
| Temperature | in between |
| Nearest name | Leafy Green (#51B73B) |
| Black text | 8.17:1 |
| White text | 2.56:1 |
Values
| HEX | #6BB421 |
| RGB | rgb(107, 180, 33) |
| HSL | hsl(90, 69%, 42%) |
| OKLCH | oklch(69.5% 0.186 133.4) |
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 #6BB421 | 2.56:1 | Fails | Lc -55.1 | Large or bold text, headings |
| Black text on #6BB421 | 8.17:1 | AAA | Lc 54.0 | Large or bold text, headings |
| #6BB421 text on white | 2.56:1 | Fails | Lc 50.0 | Large or bold text, headings |
| #6BB421 text on black | 8.17:1 | AAA | Lc -52.0 | 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
#F1F8ED
oklch(97.1% 0.016 133.8)
-
Step 100
100
#E1EFD9
oklch(93.6% 0.033 133.9)
-
Step 200
200
#C8E3B8
oklch(88.5% 0.064 133.9)
-
Step 300
300
#A2D183
oklch(80.9% 0.116 133.7)
-
Step 400
400 (this color)
#6BB421
oklch(69.5% 0.186 133.4)
-
Step 500
500
#5A9F00
oklch(63.2% 0.179 133.4)
-
Step 600
600
#4B8600
oklch(55.8% 0.158 133.4)
-
Step 700
700
#3E7000
oklch(49% 0.139 133.3)
-
Step 800
800
#325C00
oklch(42.7% 0.121 133.3)
-
Step 900
900
#284D00
oklch(37.7% 0.108 133.7)
-
Step 950
950
#162E00
oklch(27.1% 0.077 133.4)
#6BB421 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) | #BBA500 | 0.106 |
| Deuteranopia (no green cones) | #B29F33 | 0.108 |
| Tritanopia (no blue cones) | #6BAD9A | 0.138 |
| Achromatopsia (no color) | #A1A1A1 | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6BB421
#6BB421
oklch(69.5% 0.186 133.4)
- #C575ED
#C575ED
oklch(69.6% 0.185 313.3)
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 #6BB421, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leafy Green #51B73B ΔE 0.023
- Dark Lime #84B701 ΔE 0.029
- Grass #5CAC2D ΔE 0.030
- Frog Green #58BC08 ΔE 0.030
- Leaf #71AA34 ΔE 0.034
- Dark Lime Green #7EBD01 ΔE 0.036
- Leaf Green #5CA904 ΔE 0.037
- Turtle Green #75B84F ΔE 0.037
Use #6BB421 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.