#63733A
Closest named color: Muddy Green (#657432). oklch(52.8% 0.083 122.2), rgb(99, 115, 58).
Aa
White text reads best on this color (5.19:1).
About this color
#63733A is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 53%, its chroma 0.083 and its hue 122°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Muddy Green (#657432), ΔE 0.010 away. White text reads best on it, at 5.19:1.
| Hue family | Yellows |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.083) |
| Temperature | in between |
| Nearest name | Muddy Green (#657432) |
| Black text | 4.04:1 |
| White text | 5.19:1 |
Values
| HEX | #63733A |
| RGB | rgb(99, 115, 58) |
| HSL | hsl(77, 33%, 34%) |
| OKLCH | oklch(52.8% 0.083 122.2) |
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 #63733A | 5.19:1 | AA | Lc -81.1 | Fine for body text |
| Black text on #63733A | 4.04:1 | AA large text | Lc 28.4 | Dividers and decoration only |
| #63733A text on white | 5.19:1 | AA | Lc 75.7 | Fine for body text |
| #63733A text on black | 4.04:1 | AA large text | Lc -26.0 | 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
#F5F6F2
oklch(97.1% 0.005 117.9)
-
Step 100
100
#E8EBE3
oklch(93.6% 0.011 123.5)
-
Step 200
200
#D6DCCD
oklch(88.6% 0.021 124.7)
-
Step 300
300
#BCC5AA
oklch(80.9% 0.038 122.3)
-
Step 400
400
#9AA77D
oklch(70.7% 0.06 121.9)
-
Step 500
500
#81915C
oklch(63% 0.077 122.3)
-
Step 600
600 (this color)
#63733A
oklch(52.8% 0.083 122.2)
-
Step 700
700
#596834
oklch(49.2% 0.078 122.5)
-
Step 800
800
#49552B
oklch(42.8% 0.065 122.3)
-
Step 900
900
#3D4627
oklch(37.7% 0.05 122)
-
Step 950
950
#242917
oklch(27% 0.032 121.2)
#63733A 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) | #796D35 | 0.035 |
| Deuteranopia (no green cones) | #776D3D | 0.035 |
| Tritanopia (no blue cones) | #676E66 | 0.069 |
| Achromatopsia (no color) | #6D6D6D | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63733A
#63733A
oklch(52.8% 0.083 122.2)
- #745F93
#745F93
oklch(52.7% 0.083 302.2)
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 #63733A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muddy Green #657432 ΔE 0.010
- Dark Moss Green #606C38 ΔE 0.022
- Military Green #667C3E ΔE 0.027
- Dark Olive Green #556B2F ΔE 0.034
- Brown Green #706C11 ΔE 0.034
- Browny Green #6F6C0A ΔE 0.036
- Murky Green #6C7A0E ΔE 0.045
- Olive Green #677A04 ΔE 0.048
Use #63733A 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.