#63B44E
Closest named color: Turtle Green (#75B84F). oklch(69.5% 0.16 139.6), rgb(99, 180, 78).
Aa
Black text reads best on this color (8.16:1).
About this color
#63B44E is a medium-light, vivid green. In OKLCH its lightness is 70%, its chroma 0.160 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Turtle Green (#75B84F), ΔE 0.023 away. Black text reads best on it, at 8.16:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.160) |
| Temperature | in between |
| Nearest name | Turtle Green (#75B84F) |
| Black text | 8.16:1 |
| White text | 2.57:1 |
Values
| HEX | #63B44E |
| RGB | rgb(99, 180, 78) |
| HSL | hsl(108, 40%, 51%) |
| OKLCH | oklch(69.5% 0.16 139.6) |
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 #63B44E | 2.57:1 | Fails | Lc -55.2 | Large or bold text, headings |
| Black text on #63B44E | 8.16:1 | AAA | Lc 54.0 | Large or bold text, headings |
| #63B44E text on white | 2.57:1 | Fails | Lc 50.1 | Large or bold text, headings |
| #63B44E text on black | 8.16:1 | AAA | Lc -51.9 | 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
#F1F8EF
oklch(97.1% 0.014 138.7)
-
Step 100
100
#E0EFDD
oklch(93.6% 0.029 140.5)
-
Step 200
200
#C7E3C0
oklch(88.6% 0.056 139.4)
-
Step 300
300
#9FD193
oklch(81% 0.1 139.6)
-
Step 400
400 (this color)
#63B44E
oklch(69.5% 0.16 139.6)
-
Step 500
500
#36A400
oklch(63.1% 0.201 139.5)
-
Step 600
600
#2C8A00
oklch(55.6% 0.177 139.5)
-
Step 700
700
#237400
oklch(49% 0.157 139.6)
-
Step 800
800
#1C5F00
oklch(42.6% 0.136 139.5)
-
Step 900
900
#165000
oklch(37.9% 0.121 139.5)
-
Step 950
950
#0A2F01
oklch(26.8% 0.084 139.7)
#63B44E 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) | #B9A644 | 0.109 |
| Deuteranopia (no green cones) | #AE9F55 | 0.108 |
| Tritanopia (no blue cones) | #5CAF9D | 0.106 |
| Achromatopsia (no color) | #A1A1A1 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63B44E
#63B44E
oklch(69.5% 0.16 139.6)
- #C779DA
#C779DA
oklch(69.5% 0.159 319.6)
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 #63B44E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turtle Green #75B84F ΔE 0.023
- Dark Pastel Green #56AE57 ΔE 0.025
- Boring Green #63B365 ΔE 0.026
- Leafy Green #51B73B ΔE 0.028
- Leaf #71AA34 ΔE 0.030
- Fern #63A950 ΔE 0.033
- Grass #5CAC2D ΔE 0.034
- Cool Green #33B864 ΔE 0.034
Use #63B44E 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.