#63B381
Closest named color: Tea (#65AB7C). oklch(70.2% 0.109 155), rgb(99, 179, 129).
Aa
Black text reads best on this color (8.29:1).
About this color
#63B381 is a medium-light, moderately saturated green. In OKLCH its lightness is 70%, its chroma 0.109 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tea (#65AB7C), ΔE 0.022 away. Black text reads best on it, at 8.29:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.109) |
| Temperature | in between |
| Nearest name | Tea (#65AB7C) |
| Black text | 8.29:1 |
| White text | 2.53:1 |
Values
| HEX | #63B381 |
| RGB | rgb(99, 179, 129) |
| HSL | hsl(143, 34%, 55%) |
| OKLCH | oklch(70.2% 0.109 155) |
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 #63B381 | 2.53:1 | Fails | Lc -54.6 | Large or bold text, headings |
| Black text on #63B381 | 8.29:1 | AAA | Lc 54.5 | Large or bold text, headings |
| #63B381 text on white | 2.53:1 | Fails | Lc 49.5 | Large or bold text, headings |
| #63B381 text on black | 8.29:1 | AAA | Lc -52.5 | 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
#C7E1CE
oklch(88.5% 0.038 153.8)
-
Step 300
300
#9ECEAE
oklch(80.9% 0.068 155.4)
-
Step 400
400 (this color)
#63B381
oklch(70.2% 0.109 155)
-
Step 500
500
#2DA163
oklch(63% 0.138 155.1)
-
Step 600
600
#008A4E
oklch(55.6% 0.137 155)
-
Step 700
700
#007441
oklch(49.1% 0.121 155.2)
-
Step 800
800
#005F34
oklch(42.6% 0.105 155.1)
-
Step 900
900
#054F2B
oklch(37.7% 0.091 154.9)
-
Step 950
950
#092E1A
oklch(26.9% 0.056 155.6)
#63B381 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) | #B3A87E | 0.098 |
| Deuteranopia (no green cones) | #A69F84 | 0.095 |
| Tritanopia (no blue cones) | #51B1A6 | 0.055 |
| Achromatopsia (no color) | #A3A3A3 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63B381
#63B381
oklch(70.2% 0.109 155)
- #C985BA
#C985BA
oklch(70.3% 0.108 335)
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 #63B381, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tea #65AB7C ΔE 0.022
- Faded Green #7BB274 ΔE 0.026
- Dusty Green #76A973 ΔE 0.030
- Greeny Blue #42B395 ΔE 0.034
- Boring Green #63B365 ΔE 0.036
- Dark Seafoam Green #3EAF76 ΔE 0.037
- Sage #87AE73 ΔE 0.038
- Sage Green #88B378 ΔE 0.039
Use #63B381 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.