#637147
Closest named color: Dark Moss Green (#606C38). oklch(52.6% 0.064 123.6), rgb(99, 113, 71).
Aa
White text reads best on this color (5.27:1).
About this color
#637147 is a medium-dark, muted yellow. In OKLCH its lightness is 53%, its chroma 0.064 and its hue 124°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Moss Green (#606C38), ΔE 0.022 away. White text reads best on it, at 5.27:1.
| Hue family | Yellows |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.064) |
| Temperature | in between |
| Nearest name | Dark Moss Green (#606C38) |
| Black text | 3.98:1 |
| White text | 5.27:1 |
Values
| HEX | #637147 |
| RGB | rgb(99, 113, 71) |
| HSL | hsl(80, 23%, 36%) |
| OKLCH | oklch(52.6% 0.064 123.6) |
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 #637147 | 5.27:1 | AA | Lc -81.5 | Fine for body text |
| Black text on #637147 | 3.98:1 | AA large text | Lc 27.9 | Dividers and decoration only |
| #637147 text on white | 5.27:1 | AA | Lc 76.2 | Fine for body text |
| #637147 text on black | 3.98:1 | AA large text | Lc -25.6 | 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
#F5F6F3
oklch(97.2% 0.004 121.6)
-
Step 100
100
#E9EBE5
oklch(93.7% 0.008 121.6)
-
Step 200
200
#D7DBD0
oklch(88.5% 0.015 123.1)
-
Step 300
300
#BDC4B0
oklch(80.9% 0.029 122.8)
-
Step 400
400
#9BA686
oklch(70.8% 0.047 123)
-
Step 500
500
#829068
oklch(63.1% 0.06 123.8)
-
Step 600
600 (this color)
#637147
oklch(52.6% 0.064 123.6)
-
Step 700
700
#5A6740
oklch(49.2% 0.061 123.6)
-
Step 800
800
#495435
oklch(42.7% 0.05 124.4)
-
Step 900
900
#3D452E
oklch(37.6% 0.039 123.8)
-
Step 950
950
#24291B
oklch(27.1% 0.026 124.1)
#637147 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) | #766C44 | 0.030 |
| Deuteranopia (no green cones) | #746C49 | 0.030 |
| Tritanopia (no blue cones) | #666D66 | 0.052 |
| Achromatopsia (no color) | #6C6C6C | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #637147
#637147
oklch(52.6% 0.064 123.6)
- #726189
#726189
oklch(52.4% 0.065 303.7)
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 #637147, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Moss Green #606C38 ΔE 0.022
- Muddy Green #657432 ΔE 0.029
- Military Green #667C3E ΔE 0.039
- Dark Olive Green #556B2F ΔE 0.040
- Brown Green #706C11 ΔE 0.048
- Grey Brown #7F7053 ΔE 0.049
- Browny Green #6F6C0A ΔE 0.050
- Dark Taupe #7F684E ΔE 0.053
Use #637147 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.