#637136
Closest named color: Muddy Green (#657432). oklch(52.3% 0.085 120.4), rgb(99, 113, 54).
Aa
White text reads best on this color (5.32:1).
About this color
#637136 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 52%, its chroma 0.085 and its hue 120°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Muddy Green (#657432), ΔE 0.012 away. White text reads best on it, at 5.32:1.
| Hue family | Yellows |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.085) |
| Temperature | in between |
| Nearest name | Muddy Green (#657432) |
| Black text | 3.94:1 |
| White text | 5.32:1 |
Values
| HEX | #637136 |
| RGB | rgb(99, 113, 54) |
| HSL | hsl(74, 35%, 33%) |
| OKLCH | oklch(52.3% 0.085 120.4) |
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 #637136 | 5.32:1 | AA | Lc -81.8 | Fine for body text |
| Black text on #637136 | 3.94:1 | AA large text | Lc 27.6 | Dividers and decoration only |
| #637136 text on white | 5.32:1 | AA | Lc 76.4 | Fine for body text |
| #637136 text on black | 3.94:1 | AA large text | Lc -25.3 | 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
#F5F6F2
oklch(97.1% 0.005 117.9)
-
Step 100
100
#E8EBE2
oklch(93.5% 0.012 121.7)
-
Step 200
200
#D7DCCB
oklch(88.6% 0.023 120.2)
-
Step 300
300
#BDC5A8
oklch(80.9% 0.041 119.8)
-
Step 400
400
#9BA779
oklch(70.7% 0.065 120)
-
Step 500
500
#829156
oklch(63% 0.084 120.5)
-
Step 600
600
#6C7B3B
oklch(55.6% 0.09 120.3)
-
Step 700
700 (this color)
#637136
oklch(52.3% 0.085 120.4)
-
Step 800
800
#4A5526
oklch(42.8% 0.071 120.4)
-
Step 900
900
#3D4624
oklch(37.7% 0.054 121.2)
-
Step 950
950
#242915
oklch(27% 0.035 120.3)
#637136 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) | #776B31 | 0.033 |
| Deuteranopia (no green cones) | #766B39 | 0.034 |
| Tritanopia (no blue cones) | #686C63 | 0.070 |
| Achromatopsia (no color) | #6B6B6B | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #637136
#637136
oklch(52.3% 0.085 120.4)
- #725E93
#725E93
oklch(52.3% 0.084 300.9)
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 #637136, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muddy Green #657432 ΔE 0.012
- Dark Moss Green #606C38 ΔE 0.017
- Dark Olive Green #556B2F ΔE 0.029
- Brown Green #706C11 ΔE 0.030
- Browny Green #6F6C0A ΔE 0.032
- Military Green #667C3E ΔE 0.032
- Mud Green #606602 ΔE 0.043
- Murky Green #6C7A0E ΔE 0.046
Use #637136 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.