#63A178
Closest named color: Tea (#65AB7C). oklch(65.5% 0.089 154.2), rgb(99, 161, 120).
Aa
Black text reads best on this color (6.89:1).
About this color
#63A178 is a medium-light, moderately saturated green. In OKLCH its lightness is 66%, its chroma 0.089 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tea (#65AB7C), ΔE 0.029 away. Black text reads best on it, at 6.89:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.089) |
| Temperature | in between |
| Nearest name | Tea (#65AB7C) |
| Black text | 6.89:1 |
| White text | 3.04:1 |
Values
| HEX | #63A178 |
| RGB | rgb(99, 161, 120) |
| HSL | hsl(140, 25%, 51%) |
| OKLCH | oklch(65.5% 0.089 154.2) |
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 #63A178 | 3.04:1 | AA large text | Lc -62.5 | Content text, not long reading |
| Black text on #63A178 | 6.89:1 | AA | Lc 46.9 | Large or bold text, headings |
| #63A178 text on white | 3.04:1 | AA large text | Lc 57.1 | Large or bold text, headings |
| #63A178 text on black | 6.89:1 | AA | Lc -44.6 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F3F7F4
oklch(97.2% 0.006 153.8)
-
Step 100
100
#E4ECE6
oklch(93.5% 0.012 153.7)
-
Step 200
200
#CDDED2
oklch(88.4% 0.024 155.1)
-
Step 300
300
#ACC9B4
oklch(80.8% 0.043 153.9)
-
Step 400
400
#7EAE8D
oklch(70.7% 0.07 154.3)
-
Step 500
500 (this color)
#63A178
oklch(65.5% 0.089 154.2)
-
Step 600
600
#3F8459
oklch(55.6% 0.097 154.3)
-
Step 700
700
#316F49
oklch(49% 0.089 154.4)
-
Step 800
800
#2A5B3C
oklch(42.8% 0.075 154)
-
Step 900
900
#274B33
oklch(37.8% 0.059 153.5)
-
Step 950
950
#172C1E
oklch(27.1% 0.038 154)
#63A178 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) | #A19876 | 0.080 |
| Deuteranopia (no green cones) | #97917A | 0.078 |
| Tritanopia (no blue cones) | #57A096 | 0.045 |
| Achromatopsia (no color) | #949494 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63A178
#63A178
oklch(65.5% 0.089 154.2)
- #B37CA7
#B37CA7
oklch(65.6% 0.089 334.7)
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 #63A178, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tea #65AB7C ΔE 0.029
- Greeny Grey #7EA07A ΔE 0.031
- Dusty Green #76A973 ΔE 0.035
- Grey Teal #5E9B8A ΔE 0.036
- Dull Teal #5F9E8F ΔE 0.037
- Dull Green #74A662 ΔE 0.039
- Moss #769958 ΔE 0.041
- Grey Green #86A17D ΔE 0.043
Use #63A178 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.