#63D17D
Closest named color: Seaweed (#18D17B). oklch(77.5% 0.156 149.2), rgb(99, 209, 125).
Aa
Black text reads best on this color (10.94:1).
About this color
#63D17D is a medium-light, vivid green. In OKLCH its lightness is 78%, its chroma 0.156 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Seaweed (#18D17B), ΔE 0.036 away. Black text reads best on it, at 10.94:1.
| Hue family | Greens |
| Lightness | medium-light (78%) |
| Chroma | vivid (0.156) |
| Temperature | in between |
| Nearest name | Seaweed (#18D17B) |
| Black text | 10.94:1 |
| White text | 1.91:1 |
Values
| HEX | #63D17D |
| RGB | rgb(99, 209, 125) |
| HSL | hsl(134, 54%, 60%) |
| OKLCH | oklch(77.5% 0.156 149.2) |
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 #63D17D | 1.91:1 | Fails | Lc -40.7 | Non-text elements, placeholder text |
| Black text on #63D17D | 10.94:1 | AAA | Lc 67.5 | Content text, not long reading |
| #63D17D text on white | 1.91:1 | Fails | Lc 36.4 | Non-text elements, placeholder text |
| #63D17D text on black | 10.94:1 | AAA | Lc -66.1 | 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
#ECFAEE
oklch(97.1% 0.022 149.7)
-
Step 100
100
#D6F3DA
oklch(93.6% 0.045 149.2)
-
Step 200
200
#B1EABA
oklch(88.5% 0.088 149.1)
-
Step 300
300 (this color)
#63D17D
oklch(77.5% 0.156 149.2)
-
Step 400
400
#00C155
oklch(70.8% 0.199 149.2)
-
Step 500
500
#00A548
oklch(63% 0.177 149.3)
-
Step 600
600
#008B3B
oklch(55.6% 0.156 149.2)
-
Step 700
700
#007531
oklch(49.1% 0.138 149.3)
-
Step 800
800
#006027
oklch(42.7% 0.12 149.3)
-
Step 900
900
#00501F
oklch(37.7% 0.106 149.2)
-
Step 950
950
#003010
oklch(27% 0.075 149.4)
#63D17D 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) | #D3C177 | 0.130 |
| Deuteranopia (no green cones) | #C3B782 | 0.126 |
| Tritanopia (no blue cones) | #4BCEBC | 0.087 |
| Achromatopsia (no color) | #BBBBBB | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63D17D
#63D17D
oklch(77.5% 0.156 149.2)
- #EC8FE6
#EC8FE6
oklch(77.5% 0.156 329.3)
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 #63D17D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed #18D17B ΔE 0.036
- Soft Green #6FC276 ΔE 0.040
- Aqua Green #12E193 ΔE 0.048
- Emerald #06D6A0 ΔE 0.048
- Dark Mint #48C072 ΔE 0.055
- Fresh Green #69D84F ΔE 0.056
- Weird Green #3AE57F ΔE 0.057
- Apple #6ECB3C ΔE 0.059
Use #63D17D 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.