#636D52
Closest named color: Dark Moss Green (#606C38). oklch(51.8% 0.043 124.4), rgb(99, 109, 82).
Aa
White text reads best on this color (5.46:1).
About this color
#636D52 is a medium-dark, muted yellow. In OKLCH its lightness is 52%, its chroma 0.043 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 0.035 away. White text reads best on it, at 5.46:1.
| Hue family | Yellows |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.043) |
| Temperature | in between |
| Nearest name | Dark Moss Green (#606C38) |
| Black text | 3.83:1 |
| White text | 5.46:1 |
Values
| HEX | #636D52 |
| RGB | rgb(99, 109, 82) |
| HSL | hsl(82, 14%, 37%) |
| OKLCH | oklch(51.8% 0.043 124.4) |
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 #636D52 | 5.46:1 | AA | Lc -82.6 | Fine for body text |
| Black text on #636D52 | 3.83:1 | AA large text | Lc 26.8 | Dividers and decoration only |
| #636D52 text on white | 5.46:1 | AA | Lc 77.3 | Fine for body text |
| #636D52 text on black | 3.83:1 | AA large text | Lc -24.5 | 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 700.
-
Step 50
50
#F5F6F4
oklch(97.2% 0.003 128.5)
-
Step 100
100
#E9EAE6
oklch(93.5% 0.005 117.9)
-
Step 200
200
#D7DAD2
oklch(88.4% 0.011 123.5)
-
Step 300
300
#BDC3B5
oklch(80.9% 0.02 125.9)
-
Step 400
400
#9CA48E
oklch(70.6% 0.032 123.5)
-
Step 500
500
#848E72
oklch(63.1% 0.042 123.6)
-
Step 600
600
#6D785B
oklch(55.5% 0.045 124.7)
-
Step 700
700 (this color)
#636D52
oklch(51.8% 0.043 124.4)
-
Step 800
800
#4B533D
oklch(42.8% 0.036 124.1)
-
Step 900
900
#3E4434
oklch(37.6% 0.028 124.4)
-
Step 950
950
#24281F
oklch(27% 0.017 127.1)
#636D52 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) | #706A50 | 0.020 |
| Deuteranopia (no green cones) | #6F6953 | 0.021 |
| Tritanopia (no blue cones) | #656A66 | 0.035 |
| Achromatopsia (no color) | #696969 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #636D52
#636D52
oklch(51.8% 0.043 124.4)
- #6E637D
#6E637D
oklch(52% 0.042 304.2)
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 #636D52, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Moss Green #606C38 ΔE 0.035
- Dim Gray #696969 ΔE 0.043
- Dark Taupe #7F684E ΔE 0.044
- Grey Brown #7F7053 ΔE 0.045
- Muddy Green #657432 ΔE 0.052
- Dark Olive Green #556B2F ΔE 0.052
- Dirt Brown #836539 ΔE 0.055
- Dull Brown #876E4B ΔE 0.057
Use #636D52 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.