#63C271
Closest named color: Soft Green (#6FC276). oklch(73.6% 0.147 147.1), rgb(99, 194, 113).
Aa
Black text reads best on this color (9.48:1).
About this color
#63C271 is a medium-light, vivid green. In OKLCH its lightness is 74%, its chroma 0.147 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Soft Green (#6FC276), ΔE 0.013 away. Black text reads best on it, at 9.48:1.
| Hue family | Greens |
| Lightness | medium-light (74%) |
| Chroma | vivid (0.147) |
| Temperature | in between |
| Nearest name | Soft Green (#6FC276) |
| Black text | 9.48:1 |
| White text | 2.21:1 |
Values
| HEX | #63C271 |
| RGB | rgb(99, 194, 113) |
| HSL | hsl(129, 44%, 57%) |
| OKLCH | oklch(73.6% 0.147 147.1) |
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 #63C271 | 2.21:1 | Fails | Lc -48.1 | Large or bold text, headings |
| Black text on #63C271 | 9.48:1 | AAA | Lc 60.6 | Content text, not long reading |
| #63C271 text on white | 2.21:1 | Fails | Lc 43.4 | Non-text elements, placeholder text |
| #63C271 text on black | 9.48:1 | AAA | Lc -58.8 | 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
#F0F8F1
oklch(97.1% 0.013 149.3)
-
Step 100
100
#DFEFE0
oklch(93.6% 0.026 147.1)
-
Step 200
200
#C4E3C6
oklch(88.5% 0.051 146.9)
-
Step 300
300
#99D19E
oklch(80.9% 0.092 146.9)
-
Step 400
400 (this color)
#63C271
oklch(73.6% 0.147 147.1)
-
Step 500
500
#00A63C
oklch(63.2% 0.188 147.1)
-
Step 600
600
#008B31
oklch(55.5% 0.165 147.1)
-
Step 700
700
#007528
oklch(49% 0.145 147.1)
-
Step 800
800
#00601F
oklch(42.6% 0.127 147)
-
Step 900
900
#005019
oklch(37.6% 0.111 147.2)
-
Step 950
950
#02300D
oklch(27% 0.077 147.1)
#63C271 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) | #C4B46B | 0.116 |
| Deuteranopia (no green cones) | #B7AB76 | 0.115 |
| Tritanopia (no blue cones) | #53BEAE | 0.086 |
| Achromatopsia (no color) | #AEAEAE | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63C271
#63C271
oklch(73.6% 0.147 147.1)
- #DA86D9
#DA86D9
oklch(73.6% 0.147 327.4)
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 #63C271, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Green #6FC276 ΔE 0.013
- Dark Mint #48C072 ΔE 0.021
- Algae Green #21C36F ΔE 0.037
- Turtle Green #75B84F ΔE 0.038
- Dark Mint Green #20C073 ΔE 0.038
- Greenblue #23C48B ΔE 0.041
- Boring Green #63B365 ΔE 0.041
- Seaweed #18D17B ΔE 0.048
Use #63C271 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.