#637548
Closest named color: Muddy Green (#657432). oklch(53.6% 0.07 126.4), rgb(99, 117, 72).
Aa
White text reads best on this color (5.03:1).
About this color
#637548 is a medium-dark, muted green. In OKLCH its lightness is 54%, its chroma 0.070 and its hue 126°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Muddy Green (#657432), ΔE 0.025 away. White text reads best on it, at 5.03:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.070) |
| Temperature | in between |
| Nearest name | Muddy Green (#657432) |
| Black text | 4.16:1 |
| White text | 5.03:1 |
Values
| HEX | #637548 |
| RGB | rgb(99, 117, 72) |
| HSL | hsl(84, 24%, 37%) |
| OKLCH | oklch(53.6% 0.07 126.4) |
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 #637548 | 5.03:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #637548 | 4.16:1 | AA large text | Lc 29.3 | Dividers and decoration only |
| #637548 text on white | 5.03:1 | AA | Lc 74.8 | Content text, not long reading |
| #637548 text on black | 4.16:1 | AA large text | Lc -26.9 | 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
#E8EBE5
oklch(93.6% 0.009 128.6)
-
Step 200
200
#D6DBCF
oklch(88.4% 0.017 125.3)
-
Step 300
300
#BBC5AF
oklch(81% 0.032 127.1)
-
Step 400
400
#98A785
oklch(70.7% 0.051 127)
-
Step 500
500
#7F9167
oklch(63.1% 0.064 127)
-
Step 600
600 (this color)
#637548
oklch(53.6% 0.07 126.4)
-
Step 700
700
#57683F
oklch(49.2% 0.065 127)
-
Step 800
800
#475434
oklch(42.6% 0.053 126.5)
-
Step 900
900
#3C462D
oklch(37.8% 0.043 126.1)
-
Step 950
950
#23291B
oklch(27% 0.026 126.9)
#637548 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) | #7A7045 | 0.035 |
| Deuteranopia (no green cones) | #776F4A | 0.034 |
| Tritanopia (no blue cones) | #65716A | 0.055 |
| Achromatopsia (no color) | #6F6F6F | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #637548
#637548
oklch(53.6% 0.07 126.4)
- #78638E
#78638E
oklch(53.7% 0.07 306.5)
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 #637548, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muddy Green #657432 ΔE 0.025
- Military Green #667C3E ΔE 0.028
- Dark Moss Green #606C38 ΔE 0.030
- Dark Olive Green #556B2F ΔE 0.045
- Dark Sage #598556 ΔE 0.045
- Brown Green #706C11 ΔE 0.049
- Grey Brown #7F7053 ΔE 0.050
- Browny Green #6F6C0A ΔE 0.051
Use #637548 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.