#63A366
Closest named color: Dull Green (#74A662). oklch(65.6% 0.111 145.2), rgb(99, 163, 102).
Aa
Black text reads best on this color (6.96:1).
About this color
#63A366 is a medium-light, moderately saturated green. In OKLCH its lightness is 66%, its chroma 0.111 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dull Green (#74A662), ΔE 0.022 away. Black text reads best on it, at 6.96:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.111) |
| Temperature | in between |
| Nearest name | Dull Green (#74A662) |
| Black text | 6.96:1 |
| White text | 3.01:1 |
Values
| HEX | #63A366 |
| RGB | rgb(99, 163, 102) |
| HSL | hsl(123, 26%, 51%) |
| OKLCH | oklch(65.6% 0.111 145.2) |
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 #63A366 | 3.01:1 | AA large text | Lc -62.1 | Content text, not long reading |
| Black text on #63A366 | 6.96:1 | AA | Lc 47.3 | Large or bold text, headings |
| #63A366 text on white | 3.01:1 | AA large text | Lc 56.8 | Large or bold text, headings |
| #63A366 text on black | 6.96:1 | AA | Lc -45.0 | 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 500.
-
Step 50
50
#F3F7F2
oklch(97.2% 0.008 139.4)
-
Step 100
100
#E4EDE4
oklch(93.7% 0.015 145.5)
-
Step 200
200
#CDDFCD
oklch(88.5% 0.031 145.3)
-
Step 300
300
#ABCAAC
oklch(80.8% 0.053 145.9)
-
Step 400
400
#7EAF7F
oklch(70.6% 0.087 145.1)
-
Step 500
500 (this color)
#63A366
oklch(65.6% 0.111 145.2)
-
Step 600
600
#3F8544
oklch(55.5% 0.121 145.1)
-
Step 700
700
#317136
oklch(49.2% 0.112 145.1)
-
Step 800
800
#295C2D
oklch(42.7% 0.093 145.2)
-
Step 900
900
#264C29
oklch(37.8% 0.073 145.6)
-
Step 950
950
#172C18
oklch(26.9% 0.045 145.2)
#63A366 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) | #A59862 | 0.087 |
| Deuteranopia (no green cones) | #9C926A | 0.086 |
| Tritanopia (no blue cones) | #5BA094 | 0.068 |
| Achromatopsia (no color) | #949494 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63A366
#63A366
oklch(65.6% 0.111 145.2)
- #B379B6
#B379B6
oklch(65.6% 0.11 325)
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 #63A366, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Green #74A662 ΔE 0.022
- Off Green #6BA353 ΔE 0.023
- Muted Green #5FA052 ΔE 0.025
- Algae #54AC68 ΔE 0.027
- Flat Green #699D4C ΔE 0.029
- Moss #769958 ΔE 0.031
- Tea #65AB7C ΔE 0.032
- Dusty Green #76A973 ΔE 0.033
Use #63A366 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.