#64A666
Closest named color: Dull Green (#74A662). oklch(66.4% 0.115 144.8), rgb(100, 166, 102).
Aa
Black text reads best on this color (7.18:1).
About this color
#64A666 is a medium-light, moderately saturated green. In OKLCH its lightness is 66%, its chroma 0.115 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 0.017 away. Black text reads best on it, at 7.18:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.115) |
| Temperature | in between |
| Nearest name | Dull Green (#74A662) |
| Black text | 7.18:1 |
| White text | 2.92:1 |
Values
| HEX | #64A666 |
| RGB | rgb(100, 166, 102) |
| HSL | hsl(122, 27%, 52%) |
| OKLCH | oklch(66.4% 0.115 144.8) |
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 #64A666 | 2.92:1 | Fails | Lc -60.8 | Content text, not long reading |
| Black text on #64A666 | 7.18:1 | AAA | Lc 48.6 | Large or bold text, headings |
| #64A666 text on white | 2.92:1 | Fails | Lc 55.5 | Large or bold text, headings |
| #64A666 text on black | 7.18:1 | AAA | Lc -46.3 | 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
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E3EDE3
oklch(93.6% 0.017 145.4)
-
Step 200
200
#CDDFCD
oklch(88.5% 0.031 145.3)
-
Step 300
300
#ABCBAB
oklch(81% 0.056 145)
-
Step 400
400
#7DB07D
oklch(70.8% 0.091 144.5)
-
Step 500
500 (this color)
#64A666
oklch(66.4% 0.115 144.8)
-
Step 600
600
#3D8642
oklch(55.6% 0.125 145)
-
Step 700
700
#2F7133
oklch(49% 0.116 144.6)
-
Step 800
800
#285C2B
oklch(42.6% 0.096 144.7)
-
Step 900
900
#264C27
oklch(37.8% 0.075 144.4)
-
Step 950
950
#172C17
oklch(26.9% 0.047 144.1)
#64A666 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) | #A89B62 | 0.088 |
| Deuteranopia (no green cones) | #9F956A | 0.087 |
| Tritanopia (no blue cones) | #5CA396 | 0.070 |
| Achromatopsia (no color) | #979797 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64A666
#64A666
oklch(66.4% 0.115 144.8)
- #B77ABB
#B77ABB
oklch(66.5% 0.116 324.6)
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 #64A666, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Green #74A662 ΔE 0.017
- Algae #54AC68 ΔE 0.020
- Off Green #6BA353 ΔE 0.021
- Muted Green #5FA052 ΔE 0.027
- Tea #65AB7C ΔE 0.029
- Dusty Green #76A973 ΔE 0.029
- Fern #63A950 ΔE 0.030
- Flat Green #699D4C ΔE 0.033
Use #64A666 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.