#63CE73
Closest named color: Seaweed (#18D17B). oklch(76.6% 0.162 146.9), rgb(99, 206, 115).
Aa
Black text reads best on this color (10.60:1).
About this color
#63CE73 is a medium-light, vivid green. In OKLCH its lightness is 77%, its chroma 0.162 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Seaweed (#18D17B), ΔE 0.033 away. Black text reads best on it, at 10.60:1.
| Hue family | Greens |
| Lightness | medium-light (77%) |
| Chroma | vivid (0.162) |
| Temperature | in between |
| Nearest name | Seaweed (#18D17B) |
| Black text | 10.60:1 |
| White text | 1.97:1 |
Values
| HEX | #63CE73 |
| RGB | rgb(99, 206, 115) |
| HSL | hsl(129, 52%, 60%) |
| OKLCH | oklch(76.6% 0.162 146.9) |
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 #63CE73 | 1.97:1 | Fails | Lc -42.4 | Non-text elements, placeholder text |
| Black text on #63CE73 | 10.60:1 | AAA | Lc 65.9 | Content text, not long reading |
| #63CE73 text on white | 1.97:1 | Fails | Lc 38.0 | Non-text elements, placeholder text |
| #63CE73 text on black | 10.60:1 | AAA | Lc -64.4 | 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
#EDFAED
oklch(97.2% 0.022 145.4)
-
Step 100
100
#D6F3D8
oklch(93.6% 0.047 147.1)
-
Step 200
200
#B2EAB7
oklch(88.5% 0.09 147.1)
-
Step 300
300 (this color)
#63CE73
oklch(76.6% 0.162 146.9)
-
Step 400
400
#00C146
oklch(70.6% 0.21 146.9)
-
Step 500
500
#00A63B
oklch(63.2% 0.188 146.9)
-
Step 600
600
#008B30
oklch(55.5% 0.165 146.9)
-
Step 700
700
#007527
oklch(49% 0.146 146.9)
-
Step 800
800
#00601F
oklch(42.6% 0.127 147)
-
Step 900
900
#005018
oklch(37.6% 0.112 146.9)
-
Step 950
950
#00300B
oklch(26.9% 0.08 146.8)
#63CE73 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) | #D0BE6C | 0.128 |
| Deuteranopia (no green cones) | #C2B479 | 0.127 |
| Tritanopia (no blue cones) | #4FCAB8 | 0.095 |
| Achromatopsia (no color) | #B8B8B8 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63CE73
#63CE73
oklch(76.6% 0.162 146.9)
- #E88BE8
#E88BE8
oklch(76.5% 0.162 327)
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 #63CE73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed #18D17B ΔE 0.033
- Soft Green #6FC276 ΔE 0.036
- Dark Mint #48C072 ΔE 0.047
- Apple #6ECB3C ΔE 0.049
- Fresh Green #69D84F ΔE 0.052
- Algae Green #21C36F ΔE 0.052
- Aqua Green #12E193 ΔE 0.056
- Emerald #06D6A0 ΔE 0.056
Use #63CE73 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.