#63B581
Closest named color: Faded Green (#7BB274). oklch(70.7% 0.112 154.5), rgb(99, 181, 129).
Aa
Black text reads best on this color (8.45:1).
About this color
#63B581 is a medium-light, moderately saturated green. In OKLCH its lightness is 71%, its chroma 0.112 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Faded Green (#7BB274), ΔE 0.025 away. Black text reads best on it, at 8.45:1.
| Hue family | Greens |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.112) |
| Temperature | in between |
| Nearest name | Faded Green (#7BB274) |
| Black text | 8.45:1 |
| White text | 2.48:1 |
Values
| HEX | #63B581 |
| RGB | rgb(99, 181, 129) |
| HSL | hsl(142, 36%, 55%) |
| OKLCH | oklch(70.7% 0.112 154.5) |
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 #63B581 | 2.48:1 | Fails | Lc -53.7 | Large or bold text, headings |
| Black text on #63B581 | 8.45:1 | AAA | Lc 55.4 | Large or bold text, headings |
| #63B581 text on white | 2.48:1 | Fails | Lc 48.6 | Large or bold text, headings |
| #63B581 text on black | 8.45:1 | AAA | Lc -53.4 | 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
#F1F7F3
oklch(97.1% 0.008 157.1)
-
Step 100
100
#E0EEE4
oklch(93.6% 0.02 154.9)
-
Step 200
200
#C6E1CE
oklch(88.5% 0.039 154.9)
-
Step 300
300
#9DCEAD
oklch(80.8% 0.069 155.1)
-
Step 400
400 (this color)
#63B581
oklch(70.7% 0.112 154.5)
-
Step 500
500
#29A261
oklch(63.1% 0.143 154.5)
-
Step 600
600
#008A4D
oklch(55.6% 0.138 154.7)
-
Step 700
700
#007440
oklch(49.1% 0.122 154.8)
-
Step 800
800
#005F33
oklch(42.6% 0.106 154.6)
-
Step 900
900
#024F2A
oklch(37.6% 0.092 154.6)
-
Step 950
950
#082F19
oklch(27.1% 0.059 154.3)
#63B581 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) | #B5AA7E | 0.100 |
| Deuteranopia (no green cones) | #A8A184 | 0.097 |
| Tritanopia (no blue cones) | #51B3A7 | 0.056 |
| Achromatopsia (no color) | #A4A4A4 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63B581
#63B581
oklch(70.7% 0.112 154.5)
- #CB85BD
#CB85BD
oklch(70.6% 0.112 334.2)
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 #63B581, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Green #7BB274 ΔE 0.025
- Tea #65AB7C ΔE 0.028
- Dusty Green #76A973 ΔE 0.035
- Boring Green #63B365 ΔE 0.035
- Greeny Blue #42B395 ΔE 0.036
- Sage Green #88B378 ΔE 0.038
- Dark Seafoam Green #3EAF76 ΔE 0.039
- Sage #87AE73 ΔE 0.039
Use #63B581 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.