#63C978
Closest named color: Soft Green (#6FC276). oklch(75.4% 0.15 148.5), rgb(99, 201, 120).
Aa
Black text reads best on this color (10.15:1).
About this color
#63C978 is a medium-light, vivid green. In OKLCH its lightness is 75%, its chroma 0.150 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Soft Green (#6FC276), ΔE 0.020 away. Black text reads best on it, at 10.15:1.
| Hue family | Greens |
| Lightness | medium-light (75%) |
| Chroma | vivid (0.150) |
| Temperature | in between |
| Nearest name | Soft Green (#6FC276) |
| Black text | 10.15:1 |
| White text | 2.06:1 |
Values
| HEX | #63C978 |
| RGB | rgb(99, 201, 120) |
| HSL | hsl(132, 49%, 59%) |
| OKLCH | oklch(75.4% 0.15 148.5) |
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 #63C978 | 2.06:1 | Fails | Lc -44.7 | Non-text elements, placeholder text |
| Black text on #63C978 | 10.15:1 | AAA | Lc 63.8 | Content text, not long reading |
| #63C978 text on white | 2.06:1 | Fails | Lc 40.1 | Non-text elements, placeholder text |
| #63C978 text on black | 10.15:1 | AAA | Lc -62.2 | 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 400.
-
Step 50
50
#F0F8F1
oklch(97.1% 0.013 149.3)
-
Step 100
100
#DEEFE0
oklch(93.5% 0.027 148.8)
-
Step 200
200
#C3E3C6
oklch(88.5% 0.052 147.7)
-
Step 300
300
#96D29F
oklch(80.9% 0.094 148.6)
-
Step 400
400 (this color)
#63C978
oklch(75.4% 0.15 148.5)
-
Step 500
500
#00A544
oklch(63% 0.18 148.5)
-
Step 600
600
#008B38
oklch(55.6% 0.159 148.5)
-
Step 700
700
#00752E
oklch(49.1% 0.14 148.5)
-
Step 800
800
#006025
oklch(42.7% 0.121 148.7)
-
Step 900
900
#00501D
oklch(37.6% 0.108 148.5)
-
Step 950
950
#00300E
oklch(27% 0.077 148.3)
#63C978 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) | #CBBA72 | 0.123 |
| Deuteranopia (no green cones) | #BCB07D | 0.120 |
| Tritanopia (no blue cones) | #4FC6B5 | 0.085 |
| Achromatopsia (no color) | #B4B4B4 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63C978
#63C978
oklch(75.4% 0.15 148.5)
- #E28BDE
#E28BDE
oklch(75.5% 0.149 328.6)
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 #63C978, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Green #6FC276 ΔE 0.020
- Dark Mint #48C072 ΔE 0.035
- Seaweed #18D17B ΔE 0.038
- Algae Green #21C36F ΔE 0.045
- Greenblue #23C48B ΔE 0.045
- Dark Mint Green #20C073 ΔE 0.049
- Turtle Green #75B84F ΔE 0.053
- Emerald #06D6A0 ΔE 0.055
Use #63C978 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.