#649D51
Closest named color: Flat Green (#699D4C). oklch(63.8% 0.123 138.3), rgb(100, 157, 81).
Aa
Black text reads best on this color (6.48:1).
About this color
#649D51 is a medium-light, moderately saturated green. In OKLCH its lightness is 64%, its chroma 0.123 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Flat Green (#699D4C), ΔE 0.007 away. Black text reads best on it, at 6.48:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Flat Green (#699D4C) |
| Black text | 6.48:1 |
| White text | 3.23:1 |
Values
| HEX | #649D51 |
| RGB | rgb(100, 157, 81) |
| HSL | hsl(105, 32%, 47%) |
| OKLCH | oklch(63.8% 0.123 138.3) |
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 #649D51 | 3.23:1 | AA large text | Lc -65.0 | Content text, not long reading |
| Black text on #649D51 | 6.48:1 | AA | Lc 44.5 | Non-text elements, placeholder text |
| #649D51 text on white | 3.23:1 | AA large text | Lc 59.5 | Large or bold text, headings |
| #649D51 text on black | 6.48:1 | AA | Lc -42.2 | 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
#F3F7F2
oklch(97.2% 0.008 139.4)
-
Step 100
100
#E4EDE2
oklch(93.6% 0.017 140)
-
Step 200
200
#CFDFCA
oklch(88.6% 0.033 138.2)
-
Step 300
300
#AECAA5
oklch(80.8% 0.059 138.1)
-
Step 400
400
#82AF74
oklch(70.6% 0.096 138.4)
-
Step 500
500 (this color)
#649D51
oklch(63.8% 0.123 138.3)
-
Step 600
600
#478531
oklch(55.6% 0.134 138.4)
-
Step 700
700
#397024
oklch(49% 0.123 138.2)
-
Step 800
800
#2F5C1F
oklch(42.8% 0.104 138.4)
-
Step 900
900
#2A4B1F
oklch(37.6% 0.08 138.4)
-
Step 950
950
#192C13
oklch(26.9% 0.051 138.5)
#649D51 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) | #A1924B | 0.083 |
| Deuteranopia (no green cones) | #998D56 | 0.082 |
| Tritanopia (no blue cones) | #61988B | 0.085 |
| Achromatopsia (no color) | #8F8F8F | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #649D51
#649D51
oklch(63.8% 0.123 138.3)
- #AB72BB
#AB72BB
oklch(63.8% 0.123 318.7)
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 #649D51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Green #699D4C ΔE 0.007
- Muted Green #5FA052 ΔE 0.009
- Off Green #6BA353 ΔE 0.020
- Moss #769958 ΔE 0.027
- Drab Green #749551 ΔE 0.028
- Fern #63A950 ΔE 0.035
- Dull Green #74A662 ΔE 0.037
- Mid Green #50A747 ΔE 0.038
Use #649D51 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.