#647303
Closest named color: Olive Green (#677A04). oklch(52.5% 0.122 118.4), rgb(100, 115, 3).
Aa
White text reads best on this color (5.25:1).
About this color
#647303 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 52%, its chroma 0.122 and its hue 118°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Olive Green (#677A04), ΔE 0.021 away. White text reads best on it, at 5.25:1.
| Hue family | Yellows |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.122) |
| Temperature | in between |
| Nearest name | Olive Green (#677A04) |
| Black text | 3.99:1 |
| White text | 5.25:1 |
Values
| HEX | #647303 |
| RGB | rgb(100, 115, 3) |
| HSL | hsl(68, 95%, 23%) |
| OKLCH | oklch(52.5% 0.122 118.4) |
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 #647303 | 5.25:1 | AA | Lc -81.3 | Fine for body text |
| Black text on #647303 | 3.99:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #647303 text on white | 5.25:1 | AA | Lc 75.9 | Fine for body text |
| #647303 text on black | 3.99:1 | AA large text | Lc -25.8 | 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
#E8EBE0
oklch(93.5% 0.015 119.1)
-
Step 200
200
#D7DCC6
oklch(88.5% 0.03 117.4)
-
Step 300
300
#BDC69E
oklch(80.9% 0.055 117.9)
-
Step 400
400
#9BA869
oklch(70.6% 0.087 118.2)
-
Step 500
500
#83933E
oklch(63.2% 0.112 118.6)
-
Step 600
600 (this color)
#647303
oklch(52.5% 0.122 118.4)
-
Step 700
700
#5B6904
oklch(49.2% 0.113 118.5)
-
Step 800
800
#4A550C
oklch(42.6% 0.093 118.3)
-
Step 900
900
#3E4714
oklch(37.8% 0.074 118.6)
-
Step 950
950
#24290D
oklch(26.8% 0.046 118)
#647303 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) | #7B6C00 | 0.040 |
| Deuteranopia (no green cones) | #7A6C13 | 0.041 |
| Tritanopia (no blue cones) | #6B6C61 | 0.105 |
| Achromatopsia (no color) | #6C6C6C | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #647303
#647303
oklch(52.5% 0.122 118.4)
- #7458A6
#7458A6
oklch(52.4% 0.122 298.7)
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 #647303, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Green #677A04 ΔE 0.021
- Murky Green #6C7A0E ΔE 0.025
- Browny Green #6F6C0A ΔE 0.026
- Brown Green #706C11 ΔE 0.029
- Muddy Green #657432 ΔE 0.030
- Mud Green #606602 ΔE 0.039
- Military Green #667C3E ΔE 0.044
- Dark Olive Green #556B2F ΔE 0.045
Use #647303 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.