#63AA66
Closest named color: Algae (#54AC68). oklch(67.4% 0.122 145), rgb(99, 170, 102).
Aa
Black text reads best on this color (7.47:1).
About this color
#63AA66 is a medium-light, moderately saturated green. In OKLCH its lightness is 67%, its chroma 0.122 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Algae (#54AC68), ΔE 0.013 away. Black text reads best on it, at 7.47:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.122) |
| Temperature | in between |
| Nearest name | Algae (#54AC68) |
| Black text | 7.47:1 |
| White text | 2.81:1 |
Values
| HEX | #63AA66 |
| RGB | rgb(99, 170, 102) |
| HSL | hsl(123, 29%, 53%) |
| OKLCH | oklch(67.4% 0.122 145) |
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 #63AA66 | 2.81:1 | Fails | Lc -59.2 | Large or bold text, headings |
| Black text on #63AA66 | 7.47:1 | AAA | Lc 50.2 | Large or bold text, headings |
| #63AA66 text on white | 2.81:1 | Fails | Lc 53.9 | Large or bold text, headings |
| #63AA66 text on black | 7.47:1 | AAA | Lc -47.9 | 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
#F1F7F1
oklch(97% 0.01 145.5)
-
Step 100
100
#E1EEE1
oklch(93.6% 0.022 145.4)
-
Step 200
200
#C9E1C8
oklch(88.5% 0.042 144.1)
-
Step 300
300
#A2CEA3
oklch(80.8% 0.076 145.4)
-
Step 400
400 (this color)
#63AA66
oklch(67.4% 0.122 145)
-
Step 500
500
#40A148
oklch(63.1% 0.156 144.9)
-
Step 600
600
#108B28
oklch(55.5% 0.169 145)
-
Step 700
700
#00761C
oklch(49.2% 0.155 144.9)
-
Step 800
800
#076019
oklch(42.6% 0.13 145.1)
-
Step 900
900
#154F1B
oklch(37.8% 0.102 144.8)
-
Step 950
950
#0E2E11
oklch(26.9% 0.064 145.2)
#63AA66 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) | #AC9E61 | 0.094 |
| Deuteranopia (no green cones) | #A2976A | 0.093 |
| Tritanopia (no blue cones) | #5AA799 | 0.074 |
| Achromatopsia (no color) | #9A9A9A | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63AA66
#63AA66
oklch(67.4% 0.122 145)
- #BC7BC0
#BC7BC0
oklch(67.4% 0.122 324.8)
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 #63AA66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Algae #54AC68 ΔE 0.013
- Dull Green #74A662 ΔE 0.019
- Off Green #6BA353 ΔE 0.024
- Fern #63A950 ΔE 0.025
- Asparagus #77AB56 ΔE 0.026
- Boring Green #63B365 ΔE 0.027
- Dark Pastel Green #56AE57 ΔE 0.028
- Tea #65AB7C ΔE 0.029
Use #63AA66 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.