#638545
Closest named color: Swamp (#698339). oklch(57.5% 0.099 131.8), rgb(99, 133, 69).
Aa
Black text reads best on this color (4.97:1).
About this color
#638545 is a medium-dark, moderately saturated green. In OKLCH its lightness is 58%, its chroma 0.099 and its hue 132°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Swamp (#698339), ΔE 0.013 away. Black text reads best on it, at 4.97:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.099) |
| Temperature | in between |
| Nearest name | Swamp (#698339) |
| Black text | 4.97:1 |
| White text | 4.22:1 |
Values
| HEX | #638545 |
| RGB | rgb(99, 133, 69) |
| HSL | hsl(92, 32%, 40%) |
| OKLCH | oklch(57.5% 0.099 131.8) |
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 #638545 | 4.22:1 | AA large text | Lc -74.6 | Content text, not long reading |
| Black text on #638545 | 4.97:1 | AA | Lc 35.0 | Non-text elements, placeholder text |
| #638545 text on white | 4.22:1 | AA large text | Lc 69.1 | Content text, not long reading |
| #638545 text on black | 4.97:1 | AA | Lc -32.6 | Non-text elements, placeholder text |
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
#F4F6F2
oklch(97.1% 0.006 128.5)
-
Step 100
100
#E7ECE3
oklch(93.7% 0.013 130.8)
-
Step 200
200
#D3DDCC
oklch(88.5% 0.025 132.1)
-
Step 300
300
#B6C7AA
oklch(80.9% 0.044 132.3)
-
Step 400
400
#90AA7C
oklch(70.6% 0.071 132)
-
Step 500
500
#75955A
oklch(63.1% 0.091 131.7)
-
Step 600
600 (this color)
#638545
oklch(57.5% 0.099 131.8)
-
Step 700
700
#4D6B31
oklch(49% 0.092 131.6)
-
Step 800
800
#3F582A
oklch(42.8% 0.077 132.3)
-
Step 900
900
#364826
oklch(37.7% 0.059 131.5)
-
Step 950
950
#202A17
oklch(26.9% 0.036 131.1)
#638545 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) | #8A7D40 | 0.057 |
| Deuteranopia (no green cones) | #857A49 | 0.058 |
| Tritanopia (no blue cones) | #648076 | 0.075 |
| Achromatopsia (no color) | #7B7B7B | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #638545
#638545
oklch(57.5% 0.099 131.8)
- #8C67A3
#8C67A3
oklch(57.4% 0.099 311.8)
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 #638545, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Swamp #698339 ΔE 0.013
- Khaki Green #728639 ΔE 0.022
- Dark Sage #598556 ΔE 0.022
- Military Green #667C3E ΔE 0.025
- Moss Green #658B38 ΔE 0.026
- Fern Green #548D44 ΔE 0.028
- Light Forest Green #4F9153 ΔE 0.036
- Mossy Green #638B27 ΔE 0.038
Use #638545 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.