#636817
Closest named color: Mud Green (#606602). oklch(49.7% 0.101 113.1), rgb(99, 104, 23).
Aa
White text reads best on this color (5.96:1).
About this color
#636817 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 50%, its chroma 0.101 and its hue 113°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mud Green (#606602), ΔE 0.012 away. White text reads best on it, at 5.96:1.
| Hue family | Yellows |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.101) |
| Temperature | in between |
| Nearest name | Mud Green (#606602) |
| Black text | 3.52:1 |
| White text | 5.96:1 |
Values
| HEX | #636817 |
| RGB | rgb(99, 104, 23) |
| HSL | hsl(64, 64%, 25%) |
| OKLCH | oklch(49.7% 0.101 113.1) |
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 #636817 | 5.96:1 | AA | Lc -84.9 | Fine for body text |
| Black text on #636817 | 3.52:1 | AA large text | Lc 24.4 | Dividers and decoration only |
| #636817 text on white | 5.96:1 | AA | Lc 79.7 | Fine for body text |
| #636817 text on black | 3.52:1 | AA large text | Lc -22.1 | 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 700.
-
Step 50
50
#F5F6F1
oklch(97.1% 0.007 115.7)
-
Step 100
100
#EAEBE0
oklch(93.6% 0.015 110.9)
-
Step 200
200
#D9DBC7
oklch(88.4% 0.027 111.6)
-
Step 300
300
#C0C4A1
oklch(80.8% 0.048 112.8)
-
Step 400
400
#A0A66D
oklch(70.6% 0.078 113.3)
-
Step 500
500
#8A9045
oklch(63.2% 0.099 113)
-
Step 600
600
#747A23
oklch(55.7% 0.108 113.3)
-
Step 700
700 (this color)
#636817
oklch(49.7% 0.101 113.1)
-
Step 800
800
#4F5315
oklch(42.5% 0.083 113)
-
Step 900
900
#424519
oklch(37.7% 0.064 112.7)
-
Step 950
950
#262910
oklch(27.1% 0.041 114.9)
#636817 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) | #706306 | 0.023 |
| Deuteranopia (no green cones) | #70641E | 0.025 |
| Tritanopia (no blue cones) | #6A6159 | 0.090 |
| Achromatopsia (no color) | #646464 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #636817
#636817
oklch(49.7% 0.101 113.1)
- #655696
#655696
oklch(49.6% 0.101 293.2)
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 #636817, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Green #606602 ΔE 0.012
- Greeny Brown #696006 ΔE 0.023
- Browny Green #6F6C0A ΔE 0.024
- Dark Olive Green #556B2F ΔE 0.024
- Brown Green #706C11 ΔE 0.025
- Dark Moss Green #606C38 ΔE 0.029
- Camo Green #526525 ΔE 0.029
- Muddy Green #657432 ΔE 0.037
Use #636817 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.