#63AA53
Closest named color: Fern (#63A950). oklch(67.1% 0.141 140), rgb(99, 170, 83).
Aa
Black text reads best on this color (7.40:1).
About this color
#63AA53 is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.141 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern (#63A950), ΔE 0.004 away. Black text reads best on it, at 7.40:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.141) |
| Temperature | in between |
| Nearest name | Fern (#63A950) |
| Black text | 7.40:1 |
| White text | 2.83:1 |
Values
| HEX | #63AA53 |
| RGB | rgb(99, 170, 83) |
| HSL | hsl(109, 34%, 50%) |
| OKLCH | oklch(67.1% 0.141 140) |
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 #63AA53 | 2.83:1 | Fails | Lc -59.5 | Large or bold text, headings |
| Black text on #63AA53 | 7.40:1 | AAA | Lc 49.8 | Large or bold text, headings |
| #63AA53 text on white | 2.83:1 | Fails | Lc 54.2 | Large or bold text, headings |
| #63AA53 text on black | 7.40:1 | AAA | Lc -47.6 | 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
#F1F8F0
oklch(97.2% 0.013 141.8)
-
Step 100
100
#E1EEDE
oklch(93.5% 0.025 139.8)
-
Step 200
200
#C9E2C3
oklch(88.6% 0.05 139.6)
-
Step 300
300
#A3CF99
oklch(80.9% 0.088 139.9)
-
Step 400
400 (this color)
#63AA53
oklch(67.1% 0.141 140)
-
Step 500
500
#42A229
oklch(63.1% 0.18 140)
-
Step 600
600
#288A00
oklch(55.5% 0.179 140)
-
Step 700
700
#217400
oklch(49% 0.157 139.9)
-
Step 800
800
#196000
oklch(42.8% 0.138 140)
-
Step 900
900
#164F04
oklch(37.6% 0.117 139.9)
-
Step 950
950
#0F2F07
oklch(27.1% 0.075 139.9)
#63AA53 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) | #AE9D4B | 0.097 |
| Deuteranopia (no green cones) | #A49759 | 0.097 |
| Tritanopia (no blue cones) | #5DA596 | 0.095 |
| Achromatopsia (no color) | #999999 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63AA53
#63AA53
oklch(67.1% 0.141 140)
- #BB77CB
#BB77CB
oklch(67.1% 0.14 319.8)
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 #63AA53, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern #63A950 ΔE 0.004
- Dark Pastel Green #56AE57 ΔE 0.014
- Off Green #6BA353 ΔE 0.021
- Asparagus #77AB56 ΔE 0.023
- Algae #54AC68 ΔE 0.024
- Mid Green #50A747 ΔE 0.025
- Boring Green #63B365 ΔE 0.028
- Leaf #71AA34 ΔE 0.029
Use #63AA53 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.