#63AA27
Closest named color: Grass (#5CAC2D). oklch(66.6% 0.175 134.3), rgb(99, 170, 39).
Aa
Black text reads best on this color (7.30:1).
About this color
#63AA27 is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.175 and its hue 134°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grass (#5CAC2D), ΔE 0.007 away. Black text reads best on it, at 7.30:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.175) |
| Temperature | in between |
| Nearest name | Grass (#5CAC2D) |
| Black text | 7.30:1 |
| White text | 2.87:1 |
Values
| HEX | #63AA27 |
| RGB | rgb(99, 170, 39) |
| HSL | hsl(93, 63%, 41%) |
| OKLCH | oklch(66.6% 0.175 134.3) |
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 #63AA27 | 2.87:1 | Fails | Lc -60.0 | Large or bold text, headings |
| Black text on #63AA27 | 7.30:1 | AAA | Lc 49.4 | Large or bold text, headings |
| #63AA27 text on white | 2.87:1 | Fails | Lc 54.7 | Large or bold text, headings |
| #63AA27 text on black | 7.30:1 | AAA | Lc -47.1 | 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
#E3EEDD
oklch(93.6% 0.025 134.3)
-
Step 200
200
#CCE1C1
oklch(88.6% 0.049 134.8)
-
Step 300
300
#AACD95
oklch(80.8% 0.085 134.1)
-
Step 400
400
#7CB357
oklch(70.7% 0.137 134.2)
-
Step 500
500 (this color)
#63AA27
oklch(66.6% 0.175 134.3)
-
Step 600
600
#478600
oklch(55.6% 0.16 134.3)
-
Step 700
700
#3B7100
oklch(49.2% 0.142 134.3)
-
Step 800
800
#2F5C00
oklch(42.5% 0.123 134.3)
-
Step 900
900
#264D00
oklch(37.6% 0.109 134.4)
-
Step 950
950
#162E04
oklch(27.1% 0.072 134.7)
#63AA27 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) | #B19C05 | 0.103 |
| Deuteranopia (no green cones) | #A79635 | 0.104 |
| Tritanopia (no blue cones) | #62A391 | 0.128 |
| Achromatopsia (no color) | #989898 | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63AA27
#63AA27
oklch(66.6% 0.175 134.3)
- #BB6EDD
#BB6EDD
oklch(66.6% 0.175 314.6)
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 #63AA27, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grass #5CAC2D ΔE 0.007
- Leaf Green #5CA904 ΔE 0.016
- Leaf #71AA34 ΔE 0.019
- Mid Green #50A747 ΔE 0.031
- Medium Green #39AD48 ΔE 0.034
- Fern #63A950 ΔE 0.035
- Leafy Green #51B73B ΔE 0.036
- Dark Pastel Green #56AE57 ΔE 0.038
Use #63AA27 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.