#637055
Closest named color: Dark Moss Green (#606C38). oklch(52.6% 0.044 128.7), rgb(99, 112, 85).
Aa
White text reads best on this color (5.27:1).
About this color
#637055 is a medium-dark, muted green. In OKLCH its lightness is 53%, its chroma 0.044 and its hue 129°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Moss Green (#606C38), ΔE 0.038 away. White text reads best on it, at 5.27:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.044) |
| Temperature | in between |
| Nearest name | Dark Moss Green (#606C38) |
| Black text | 3.97:1 |
| White text | 5.27:1 |
Values
| HEX | #637055 |
| RGB | rgb(99, 112, 85) |
| HSL | hsl(89, 14%, 39%) |
| OKLCH | oklch(52.6% 0.044 128.7) |
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 #637055 | 5.27:1 | AA | Lc -81.6 | Fine for body text |
| Black text on #637055 | 3.97:1 | AA large text | Lc 27.8 | Dividers and decoration only |
| #637055 text on white | 5.27:1 | AA | Lc 76.2 | Fine for body text |
| #637055 text on black | 3.97:1 | AA large text | Lc -25.5 | 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
#F5F6F4
oklch(97.2% 0.003 128.5)
-
Step 100
100
#E9EBE7
oklch(93.7% 0.006 128.5)
-
Step 200
200
#D7DBD3
oklch(88.6% 0.012 128.6)
-
Step 300
300
#BDC3B6
oklch(80.9% 0.019 127.2)
-
Step 400
400
#9BA590
oklch(70.8% 0.032 128)
-
Step 500
500
#828F75
oklch(63.2% 0.041 129.2)
-
Step 600
600 (this color)
#637055
oklch(52.6% 0.044 128.7)
-
Step 700
700
#5A654D
oklch(49% 0.039 127.8)
-
Step 800
800
#49533F
oklch(42.7% 0.034 129.4)
-
Step 900
900
#3D4436
oklch(37.6% 0.025 129.2)
-
Step 950
950
#24281F
oklch(27% 0.017 127.1)
#637055 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) | #736C53 | 0.025 |
| Deuteranopia (no green cones) | #716B56 | 0.025 |
| Tritanopia (no blue cones) | #646E69 | 0.033 |
| Achromatopsia (no color) | #6C6C6C | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #637055
#637055
oklch(52.6% 0.044 128.7)
- #72647E
#72647E
oklch(52.6% 0.043 309.2)
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 #637055, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Moss Green #606C38 ΔE 0.038
- Grey Brown #7F7053 ΔE 0.043
- Dim Gray #696969 ΔE 0.044
- Dark Taupe #7F684E ΔE 0.046
- Muddy Green #657432 ΔE 0.050
- Military Green #667C3E ΔE 0.055
- Dark Olive Green #556B2F ΔE 0.055
- Dull Brown #876E4B ΔE 0.055
Use #637055 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.