#647D1D
Closest named color: Olive Green (#677A04). oklch(55.1% 0.123 123.4), rgb(100, 125, 29).
Aa
White text reads best on this color (4.67:1).
About this color
#647D1D is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 55%, its chroma 0.123 and its hue 123°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Olive Green (#677A04), ΔE 0.011 away. White text reads best on it, at 4.67:1.
| Hue family | Yellows |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Olive Green (#677A04) |
| Black text | 4.49:1 |
| White text | 4.67:1 |
Values
| HEX | #647D1D |
| RGB | rgb(100, 125, 29) |
| HSL | hsl(76, 62%, 30%) |
| OKLCH | oklch(55.1% 0.123 123.4) |
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 #647D1D | 4.67:1 | AA | Lc -77.8 | Fine for body text |
| Black text on #647D1D | 4.49:1 | AA large text | Lc 31.7 | Non-text elements, placeholder text |
| #647D1D text on white | 4.67:1 | AA | Lc 72.3 | Content text, not long reading |
| #647D1D text on black | 4.49:1 | AA large text | Lc -29.4 | 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
#F4F6F1
oklch(97% 0.007 124.4)
-
Step 100
100
#E8ECE0
oklch(93.7% 0.017 121.8)
-
Step 200
200
#D5DDC7
oklch(88.5% 0.031 123.3)
-
Step 300
300
#B9C7A0
oklch(80.9% 0.055 123.7)
-
Step 400
400
#96AA6C
oklch(70.7% 0.088 123.2)
-
Step 500
500
#7C9542
oklch(63.2% 0.114 123.6)
-
Step 600
600 (this color)
#647D1D
oklch(55.1% 0.123 123.4)
-
Step 700
700
#546B10
oklch(49.2% 0.114 123.7)
-
Step 800
800
#455712
oklch(42.7% 0.094 123.4)
-
Step 900
900
#3A4817
oklch(37.8% 0.074 123.4)
-
Step 950
950
#222A0F
oklch(27% 0.046 123.2)
#647D1D 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) | #857508 | 0.051 |
| Deuteranopia (no green cones) | #817426 | 0.052 |
| Tritanopia (no blue cones) | #69766B | 0.103 |
| Achromatopsia (no color) | #747474 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #647D1D
#647D1D
oklch(55.1% 0.123 123.4)
- #815EAC
#815EAC
oklch(55.1% 0.122 303.3)
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 #647D1D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Green #677A04 ΔE 0.011
- Murky Green #6C7A0E ΔE 0.013
- Swamp #698339 ΔE 0.028
- Military Green #667C3E ΔE 0.032
- Swamp Green #748500 ΔE 0.036
- Muddy Green #657432 ΔE 0.036
- Khaki Green #728639 ΔE 0.040
- Mossy Green #638B27 ΔE 0.040
Use #647D1D 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.