#647820
Closest named color: Olive Green (#677A04). oklch(53.9% 0.114 121.5), rgb(100, 120, 32).
Aa
White text reads best on this color (4.94:1).
About this color
#647820 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 54%, its chroma 0.114 and its hue 122°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Olive Green (#677A04), ΔE 0.015 away. White text reads best on it, at 4.94:1.
| Hue family | Yellows |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.114) |
| Temperature | in between |
| Nearest name | Olive Green (#677A04) |
| Black text | 4.24:1 |
| White text | 4.94:1 |
Values
| HEX | #647820 |
| RGB | rgb(100, 120, 32) |
| HSL | hsl(74, 58%, 30%) |
| OKLCH | oklch(53.9% 0.114 121.5) |
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 #647820 | 4.94:1 | AA | Lc -79.5 | Fine for body text |
| Black text on #647820 | 4.24:1 | AA large text | Lc 30.0 | Dividers and decoration only |
| #647820 text on white | 4.94:1 | AA | Lc 74.1 | Content text, not long reading |
| #647820 text on black | 4.24:1 | AA large text | Lc -27.6 | Dividers and decoration only |
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 600.
-
Step 50
50
#F5F6F1
oklch(97.1% 0.007 115.7)
-
Step 100
100
#E8ECE1
oklch(93.7% 0.015 123)
-
Step 200
200
#D6DCC8
oklch(88.4% 0.028 120.6)
-
Step 300
300
#BBC6A2
oklch(80.8% 0.051 121.3)
-
Step 400
400
#98A96F
oklch(70.7% 0.082 121.8)
-
Step 500
500
#7F9347
oklch(63% 0.105 121.6)
-
Step 600
600 (this color)
#647820
oklch(53.9% 0.114 121.5)
-
Step 700
700
#576918
oklch(48.9% 0.106 121.5)
-
Step 800
800
#475617
oklch(42.6% 0.088 121.8)
-
Step 900
900
#3C471A
oklch(37.7% 0.068 121.3)
-
Step 950
950
#232A10
oklch(27.1% 0.044 121.8)
#647820 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) | #807111 | 0.044 |
| Deuteranopia (no green cones) | #7D7027 | 0.045 |
| Tritanopia (no blue cones) | #6A7267 | 0.096 |
| Achromatopsia (no color) | #707070 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #647820
#647820
oklch(53.9% 0.114 121.5)
- #7A5DA5
#7A5DA5
oklch(53.9% 0.113 301.3)
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 #647820, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Green #677A04 ΔE 0.015
- Murky Green #6C7A0E ΔE 0.016
- Muddy Green #657432 ΔE 0.023
- Military Green #667C3E ΔE 0.028
- Browny Green #6F6C0A ΔE 0.035
- Brown Green #706C11 ΔE 0.036
- Swamp #698339 ΔE 0.036
- Dark Moss Green #606C38 ΔE 0.049
Use #647820 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.