#63C151
Closest named color: Turtle Green (#75B84F). oklch(72.9% 0.175 140.5), rgb(99, 193, 81).
Aa
Black text reads best on this color (9.27:1).
About this color
#63C151 is a medium-light, vivid green. In OKLCH its lightness is 73%, its chroma 0.175 and its hue 141°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Turtle Green (#75B84F), ΔE 0.028 away. Black text reads best on it, at 9.27:1.
| Hue family | Greens |
| Lightness | medium-light (73%) |
| Chroma | vivid (0.175) |
| Temperature | in between |
| Nearest name | Turtle Green (#75B84F) |
| Black text | 9.27:1 |
| White text | 2.26:1 |
Values
| HEX | #63C151 |
| RGB | rgb(99, 193, 81) |
| HSL | hsl(110, 47%, 54%) |
| OKLCH | oklch(72.9% 0.175 140.5) |
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 #63C151 | 2.26:1 | Fails | Lc -49.2 | Large or bold text, headings |
| Black text on #63C151 | 9.27:1 | AAA | Lc 59.6 | Large or bold text, headings |
| #63C151 text on white | 2.26:1 | Fails | Lc 44.4 | Non-text elements, placeholder text |
| #63C151 text on black | 9.27:1 | AAA | Lc -57.8 | 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
#F0F8EF
oklch(97.1% 0.015 142.2)
-
Step 100
100
#DFF0DC
oklch(93.7% 0.032 141)
-
Step 200
200
#C4E4BE
oklch(88.6% 0.061 140.7)
-
Step 300
300
#9AD28F
oklch(80.8% 0.109 140.4)
-
Step 400
400 (this color)
#63C151
oklch(72.9% 0.175 140.5)
-
Step 500
500
#2BA500
oklch(63.1% 0.206 140.6)
-
Step 600
600
#238B00
oklch(55.6% 0.181 140.6)
-
Step 700
700
#1C7500
oklch(49.2% 0.16 140.5)
-
Step 800
800
#156000
oklch(42.7% 0.139 140.6)
-
Step 900
900
#105000
oklch(37.7% 0.123 140.6)
-
Step 950
950
#063000
oklch(27% 0.088 140.7)
#63C151 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) | #C6B146 | 0.122 |
| Deuteranopia (no green cones) | #B9A95A | 0.121 |
| Tritanopia (no blue cones) | #59BBA9 | 0.117 |
| Achromatopsia (no color) | #ACACAC | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63C151
#63C151
oklch(72.9% 0.175 140.5)
- #D77EEA
#D77EEA
oklch(72.8% 0.176 320.4)
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 #63C151, closest first.
No curated palette has a color within ΔE 0.04 of #63C151.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turtle Green #75B84F ΔE 0.028
- Leafy Green #51B73B ΔE 0.037
- Apple #6ECB3C ΔE 0.038
- Dark Mint #48C072 ΔE 0.038
- Dark Lime Green #7EBD01 ΔE 0.040
- Algae Green #21C36F ΔE 0.041
- Soft Green #6FC276 ΔE 0.044
- Shamrock Green #02C14D ΔE 0.044
Use #63C151 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.