#63D689
Closest named color: Aqua Green (#12E193). oklch(79% 0.152 152.2), rgb(99, 214, 137).
Aa
Black text reads best on this color (11.51:1).
About this color
#63D689 is a light, vivid green. In OKLCH its lightness is 79%, its chroma 0.152 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Aqua Green (#12E193), ΔE 0.038 away. Black text reads best on it, at 11.51:1.
| Hue family | Greens |
| Lightness | light (79%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Aqua Green (#12E193) |
| Black text | 11.51:1 |
| White text | 1.82:1 |
Values
| HEX | #63D689 |
| RGB | rgb(99, 214, 137) |
| HSL | hsl(140, 58%, 61%) |
| OKLCH | oklch(79% 0.152 152.2) |
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 #63D689 | 1.82:1 | Fails | Lc -37.9 | Non-text elements, placeholder text |
| Black text on #63D689 | 11.51:1 | AAA | Lc 70.0 | Content text, not long reading |
| #63D689 text on white | 1.82:1 | Fails | Lc 33.8 | Non-text elements, placeholder text |
| #63D689 text on black | 11.51:1 | AAA | Lc -68.8 | Content text, not long reading |
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 300.
-
Step 50
50
#ECFAEF
oklch(97.2% 0.021 152.2)
-
Step 100
100
#D5F3DC
oklch(93.6% 0.044 152.4)
-
Step 200
200
#AFEABE
oklch(88.5% 0.085 152.2)
-
Step 300
300 (this color)
#63D689
oklch(79% 0.152 152.2)
-
Step 400
400
#00C063
oklch(70.8% 0.186 152.1)
-
Step 500
500
#00A554
oklch(63.2% 0.166 152.1)
-
Step 600
600
#008A46
oklch(55.5% 0.145 152.3)
-
Step 700
700
#00743A
oklch(49% 0.128 152.4)
-
Step 800
800
#00602E
oklch(42.8% 0.113 152)
-
Step 900
900
#005026
oklch(37.8% 0.099 152.3)
-
Step 950
950
#003014
oklch(27.1% 0.071 152.1)
#63D689 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) | #D6C684 | 0.131 |
| Deuteranopia (no green cones) | #C6BB8E | 0.129 |
| Tritanopia (no blue cones) | #45D3C2 | 0.080 |
| Achromatopsia (no color) | #C0C0C0 | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63D689
#63D689
oklch(79% 0.152 152.2)
- #F394E5
#F394E5
oklch(79% 0.152 332.4)
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 #63D689, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Green #12E193 ΔE 0.038
- Emerald #06D6A0 ΔE 0.042
- Seaweed #18D17B ΔE 0.045
- Weird Green #3AE57F ΔE 0.051
- Soft Green #6FC276 ΔE 0.053
- Medium Aquamarine #66CDAA ΔE 0.058
- Fresh Green #69D84F ΔE 0.063
- Aqua Marine #2EE8BB ΔE 0.066
Use #63D689 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.