#638744
Closest named color: Swamp (#698339). oklch(58% 0.103 132.1), rgb(99, 135, 68).
Aa
Black text reads best on this color (5.07:1).
About this color
#638744 is a medium-dark, moderately saturated green. In OKLCH its lightness is 58%, its chroma 0.103 and its hue 132°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Swamp (#698339), ΔE 0.014 away. Black text reads best on it, at 5.07:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.103) |
| Temperature | in between |
| Nearest name | Swamp (#698339) |
| Black text | 5.07:1 |
| White text | 4.13:1 |
Values
| HEX | #638744 |
| RGB | rgb(99, 135, 68) |
| HSL | hsl(92, 33%, 40%) |
| OKLCH | oklch(58% 0.103 132.1) |
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 #638744 | 4.13:1 | AA large text | Lc -73.8 | Content text, not long reading |
| Black text on #638744 | 5.07:1 | AA | Lc 35.7 | Non-text elements, placeholder text |
| #638744 text on white | 4.13:1 | AA large text | Lc 68.4 | Content text, not long reading |
| #638744 text on black | 5.07:1 | AA | Lc -33.3 | 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
#E6ECE3
oklch(93.6% 0.014 134.9)
-
Step 200
200
#D3DDCC
oklch(88.5% 0.025 132.1)
-
Step 300
300
#B6C7A9
oklch(80.9% 0.045 131.6)
-
Step 400
400
#8FAB7A
oklch(70.7% 0.075 132.3)
-
Step 500
500
#749658
oklch(63.2% 0.096 132)
-
Step 600
600 (this color)
#638744
oklch(58% 0.103 132.1)
-
Step 700
700
#4C6C2F
oklch(49.2% 0.096 132)
-
Step 800
800
#3E5828
oklch(42.7% 0.079 132.4)
-
Step 900
900
#354825
oklch(37.6% 0.061 132)
-
Step 950
950
#1F2A16
oklch(26.8% 0.038 132)
#638744 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) | #8C7F3E | 0.059 |
| Deuteranopia (no green cones) | #877C48 | 0.060 |
| Tritanopia (no blue cones) | #648277 | 0.077 |
| Achromatopsia (no color) | #7D7D7D | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #638744
#638744
oklch(58% 0.103 132.1)
- #8F68A6
#8F68A6
oklch(58.1% 0.102 312.3)
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 #638744, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Swamp #698339 ΔE 0.014
- Moss Green #658B38 ΔE 0.020
- Khaki Green #728639 ΔE 0.020
- Fern Green #548D44 ΔE 0.023
- Dark Sage #598556 ΔE 0.026
- Military Green #667C3E ΔE 0.031
- Light Forest Green #4F9153 ΔE 0.032
- Mossy Green #638B27 ΔE 0.033
Use #638744 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.