#63751F
Closest named color: Muddy Green (#657432). oklch(53% 0.111 120.7), rgb(99, 117, 31).
Aa
White text reads best on this color (5.12:1).
About this color
#63751F is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 53%, its chroma 0.111 and its hue 121°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Muddy Green (#657432), ΔE 0.019 away. White text reads best on it, at 5.12:1.
| Hue family | Yellows |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.111) |
| Temperature | in between |
| Nearest name | Muddy Green (#657432) |
| Black text | 4.09:1 |
| White text | 5.12:1 |
Values
| HEX | #63751F |
| RGB | rgb(99, 117, 31) |
| HSL | hsl(73, 58%, 29%) |
| OKLCH | oklch(53% 0.111 120.7) |
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 #63751F | 5.12:1 | AA | Lc -80.6 | Fine for body text |
| Black text on #63751F | 4.09:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #63751F text on white | 5.12:1 | AA | Lc 75.3 | Fine for body text |
| #63751F text on black | 4.09:1 | AA large text | Lc -26.5 | 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
#E8EBE1
oklch(93.5% 0.014 120.3)
-
Step 200
200
#D6DCC8
oklch(88.4% 0.028 120.6)
-
Step 300
300
#BCC6A2
oklch(80.9% 0.05 120.1)
-
Step 400
400
#99A96F
oklch(70.8% 0.081 121.1)
-
Step 500
500
#819348
oklch(63.2% 0.103 120.6)
-
Step 600
600 (this color)
#63751F
oklch(53% 0.111 120.7)
-
Step 700
700
#59691A
oklch(49.1% 0.104 120.4)
-
Step 800
800
#485619
oklch(42.7% 0.086 121.2)
-
Step 900
900
#3D471B
oklch(37.8% 0.067 120.4)
-
Step 950
950
#232A11
oklch(27.1% 0.043 122.2)
#63751F 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) | #7D6E10 | 0.041 |
| Deuteranopia (no green cones) | #7A6E26 | 0.042 |
| Tritanopia (no blue cones) | #696F64 | 0.093 |
| Achromatopsia (no color) | #6E6E6E | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63751F
#63751F
oklch(53% 0.111 120.7)
- #775BA2
#775BA2
oklch(53% 0.112 300.8)
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 #63751F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muddy Green #657432 ΔE 0.019
- Olive Green #677A04 ΔE 0.022
- Murky Green #6C7A0E ΔE 0.023
- Browny Green #6F6C0A ΔE 0.028
- Brown Green #706C11 ΔE 0.029
- Military Green #667C3E ΔE 0.032
- Dark Moss Green #606C38 ΔE 0.042
- Dark Olive Green #556B2F ΔE 0.042
Use #63751F 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.