#63A740
Closest named color: Fern (#63A950). oklch(66.1% 0.154 136.5), rgb(99, 167, 64).
Aa
Black text reads best on this color (7.13:1).
About this color
#63A740 is a medium-light, vivid green. In OKLCH its lightness is 66%, its chroma 0.154 and its hue 136°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern (#63A950), ΔE 0.015 away. Black text reads best on it, at 7.13:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.154) |
| Temperature | in between |
| Nearest name | Fern (#63A950) |
| Black text | 7.13:1 |
| White text | 2.94:1 |
Values
| HEX | #63A740 |
| RGB | rgb(99, 167, 64) |
| HSL | hsl(100, 45%, 45%) |
| OKLCH | oklch(66.1% 0.154 136.5) |
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 #63A740 | 2.94:1 | Fails | Lc -61.1 | Content text, not long reading |
| Black text on #63A740 | 7.13:1 | AAA | Lc 48.3 | Large or bold text, headings |
| #63A740 text on white | 2.94:1 | Fails | Lc 55.7 | Large or bold text, headings |
| #63A740 text on black | 7.13:1 | AAA | Lc -46.1 | 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 500.
-
Step 50
50
#F2F7F0
oklch(97% 0.011 136.6)
-
Step 100
100
#E3EDDF
oklch(93.5% 0.021 136.6)
-
Step 200
200
#CDE0C5
oklch(88.5% 0.042 136.3)
-
Step 300
300
#ABCC9C
oklch(80.8% 0.075 136)
-
Step 400
400
#7DB265
oklch(70.8% 0.12 136.5)
-
Step 500
500 (this color)
#63A740
oklch(66.1% 0.154 136.5)
-
Step 600
600
#3E8800
oklch(55.7% 0.167 136.5)
-
Step 700
700
#337200
oklch(49.1% 0.147 136.5)
-
Step 800
800
#295E00
oklch(42.8% 0.128 136.5)
-
Step 900
900
#264D0F
oklch(37.7% 0.1 136.4)
-
Step 950
950
#172D0B
oklch(27% 0.063 136.2)
#63A740 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) | #AD9A34 | 0.097 |
| Deuteranopia (no green cones) | #A39448 | 0.098 |
| Tritanopia (no blue cones) | #60A191 | 0.109 |
| Achromatopsia (no color) | #969696 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63A740
#63A740
oklch(66.1% 0.154 136.5)
- #B771D1
#B771D1
oklch(66% 0.155 316.3)
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 #63A740, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern #63A950 ΔE 0.015
- Mid Green #50A747 ΔE 0.017
- Leaf #71AA34 ΔE 0.020
- Grass #5CAC2D ΔE 0.025
- Dark Pastel Green #56AE57 ΔE 0.025
- Off Green #6BA353 ΔE 0.028
- Muted Green #5FA052 ΔE 0.032
- Medium Green #39AD48 ΔE 0.033
Use #63A740 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.