#64A663
Closest named color: Dull Green (#74A662). oklch(66.4% 0.118 143.8), rgb(100, 166, 99).
Aa
Black text reads best on this color (7.17:1).
About this color
#64A663 is a medium-light, moderately saturated green. In OKLCH its lightness is 66%, its chroma 0.118 and its hue 144°. 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 7.17:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.118) |
| Temperature | in between |
| Nearest name | Dull Green (#74A662) |
| Black text | 7.17:1 |
| White text | 2.92:1 |
Values
| HEX | #64A663 |
| RGB | rgb(100, 166, 99) |
| HSL | hsl(119, 27%, 52%) |
| OKLCH | oklch(66.4% 0.118 143.8) |
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 #64A663 | 2.92:1 | Fails | Lc -60.9 | Content text, not long reading |
| Black text on #64A663 | 7.17:1 | AAA | Lc 48.5 | Large or bold text, headings |
| #64A663 text on white | 2.92:1 | Fails | Lc 55.5 | Large or bold text, headings |
| #64A663 text on black | 7.17:1 | 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
#CDDFCC
oklch(88.5% 0.032 143.8)
-
Step 300
300
#ABCBA9
oklch(80.9% 0.058 143.5)
-
Step 400
400
#7DB07B
oklch(70.7% 0.093 143.6)
-
Step 500
500 (this color)
#64A663
oklch(66.4% 0.118 143.8)
-
Step 600
600
#3E863E
oklch(55.6% 0.129 143.6)
-
Step 700
700
#2F7130
oklch(49% 0.119 143.7)
-
Step 800
800
#285C29
oklch(42.6% 0.098 144)
-
Step 900
900
#264C26
oklch(37.8% 0.076 143.9)
-
Step 950
950
#172D16
oklch(27.2% 0.05 143.1)
#64A663 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) | #A99B5E | 0.090 |
| Deuteranopia (no green cones) | #9F9467 | 0.089 |
| Tritanopia (no blue cones) | #5DA295 | 0.074 |
| Achromatopsia (no color) | #979797 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64A663
#64A663
oklch(66.4% 0.118 143.8)
- #B779BC
#B779BC
oklch(66.3% 0.119 324.2)
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 #64A663, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Green #74A662 ΔE 0.017
- Off Green #6BA353 ΔE 0.018
- Algae #54AC68 ΔE 0.020
- Muted Green #5FA052 ΔE 0.025
- Fern #63A950 ΔE 0.026
- Flat Green #699D4C ΔE 0.030
- Asparagus #77AB56 ΔE 0.031
- Dusty Green #76A973 ΔE 0.031
Use #64A663 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.