#64A91C
Closest named color: Grass (#5CAC2D). oklch(66.4% 0.178 133.3), rgb(100, 169, 28).
Aa
Black text reads best on this color (7.23:1).
About this color
#64A91C is a medium-light, vivid green. In OKLCH its lightness is 66%, its chroma 0.178 and its hue 133°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grass (#5CAC2D), ΔE 0.011 away. Black text reads best on it, at 7.23:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.178) |
| Temperature | in between |
| Nearest name | Grass (#5CAC2D) |
| Black text | 7.23:1 |
| White text | 2.90:1 |
Values
| HEX | #64A91C |
| RGB | rgb(100, 169, 28) |
| HSL | hsl(89, 72%, 39%) |
| OKLCH | oklch(66.4% 0.178 133.3) |
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 #64A91C | 2.90:1 | Fails | Lc -60.4 | Content text, not long reading |
| Black text on #64A91C | 7.23:1 | AAA | Lc 49.0 | Large or bold text, headings |
| #64A91C text on white | 2.90:1 | Fails | Lc 55.1 | Large or bold text, headings |
| #64A91C text on black | 7.23:1 | AAA | Lc -46.7 | 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
#F2F7EF
oklch(97% 0.012 133.4)
-
Step 100
100
#E3EEDD
oklch(93.6% 0.025 134.3)
-
Step 200
200
#CDE1C0
oklch(88.6% 0.049 133)
-
Step 300
300
#AACD93
oklch(80.8% 0.087 133.4)
-
Step 400
400
#7DB353
oklch(70.8% 0.14 133.2)
-
Step 500
500 (this color)
#64A91C
oklch(66.4% 0.178 133.3)
-
Step 600
600
#4B8500
oklch(55.5% 0.157 133.2)
-
Step 700
700
#3E7000
oklch(49% 0.139 133.3)
-
Step 800
800
#325C00
oklch(42.7% 0.121 133.3)
-
Step 900
900
#294D00
oklch(37.8% 0.107 133.2)
-
Step 950
950
#172E02
oklch(27.2% 0.074 133.4)
#64A91C 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) | #B09B00 | 0.102 |
| Deuteranopia (no green cones) | #A7962E | 0.102 |
| Tritanopia (no blue cones) | #64A290 | 0.133 |
| Achromatopsia (no color) | #979797 | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64A91C
#64A91C
oklch(66.4% 0.178 133.3)
- #B96DDF
#B96DDF
oklch(66.4% 0.178 313.3)
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 #64A91C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grass #5CAC2D ΔE 0.011
- Leaf Green #5CA904 ΔE 0.012
- Leaf #71AA34 ΔE 0.022
- Mid Green #50A747 ΔE 0.034
- Medium Green #39AD48 ΔE 0.037
- Leafy Green #51B73B ΔE 0.038
- Fern #63A950 ΔE 0.040
- Avocado Green #87A922 ΔE 0.042
Use #64A91C 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.