#63AE2B
Closest named color: Grass (#5CAC2D). oklch(67.7% 0.178 135), rgb(99, 174, 43).
Aa
Black text reads best on this color (7.61:1).
About this color
#63AE2B is a medium-light, vivid green. In OKLCH its lightness is 68%, its chroma 0.178 and its hue 135°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grass (#5CAC2D), ΔE 0.009 away. Black text reads best on it, at 7.61:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.178) |
| Temperature | in between |
| Nearest name | Grass (#5CAC2D) |
| Black text | 7.61:1 |
| White text | 2.75:1 |
Values
| HEX | #63AE2B |
| RGB | rgb(99, 174, 43) |
| HSL | hsl(94, 60%, 43%) |
| OKLCH | oklch(67.7% 0.178 135) |
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 #63AE2B | 2.75:1 | Fails | Lc -58.2 | Large or bold text, headings |
| Black text on #63AE2B | 7.61:1 | AAA | Lc 51.1 | Large or bold text, headings |
| #63AE2B text on white | 2.75:1 | Fails | Lc 53.0 | Large or bold text, headings |
| #63AE2B text on black | 7.61:1 | AAA | Lc -48.9 | 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
#F1F8EE
oklch(97.1% 0.015 136.1)
-
Step 100
100
#E1EFDA
oklch(93.6% 0.032 135)
-
Step 200
200
#C8E3BA
oklch(88.5% 0.062 134.9)
-
Step 300
300
#A1D188
oklch(80.9% 0.111 135.3)
-
Step 400
400 (this color)
#63AE2B
oklch(67.7% 0.178 135)
-
Step 500
500
#52A000
oklch(63% 0.185 135.1)
-
Step 600
600
#448700
oklch(55.7% 0.163 135.2)
-
Step 700
700
#387100
oklch(49% 0.143 135.1)
-
Step 800
800
#2D5D00
oklch(42.7% 0.125 135.1)
-
Step 900
900
#254D00
oklch(37.6% 0.109 134.8)
-
Step 950
950
#132E00
oklch(26.9% 0.079 135.2)
#63AE2B 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) | #B5A00E | 0.106 |
| Deuteranopia (no green cones) | #AB9938 | 0.108 |
| Tritanopia (no blue cones) | #61A795 | 0.129 |
| Achromatopsia (no color) | #9C9C9C | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63AE2B
#63AE2B
oklch(67.7% 0.178 135)
- #C070E1
#C070E1
oklch(67.7% 0.178 315.2)
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 #63AE2B, closest first.
No curated palette has a color within ΔE 0.04 of #63AE2B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grass #5CAC2D ΔE 0.009
- Leaf #71AA34 ΔE 0.021
- Leaf Green #5CA904 ΔE 0.021
- Leafy Green #51B73B ΔE 0.026
- Medium Green #39AD48 ΔE 0.036
- Mid Green #50A747 ΔE 0.037
- Dark Pastel Green #56AE57 ΔE 0.038
- Fern #63A950 ΔE 0.038
Use #63AE2B 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.