#638313
Closest named color: Mossy Green (#638B27). oklch(56.5% 0.136 125.4), rgb(99, 131, 19).
Aa
Black text reads best on this color (4.78:1).
About this color
#638313 is a medium-dark, moderately saturated green. In OKLCH its lightness is 57%, its chroma 0.136 and its hue 125°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mossy Green (#638B27), ΔE 0.023 away. Black text reads best on it, at 4.78:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.136) |
| Temperature | in between |
| Nearest name | Mossy Green (#638B27) |
| Black text | 4.78:1 |
| White text | 4.38:1 |
Values
| HEX | #638313 |
| RGB | rgb(99, 131, 19) |
| HSL | hsl(77, 75%, 29%) |
| OKLCH | oklch(56.5% 0.136 125.4) |
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 #638313 | 4.38:1 | AA large text | Lc -75.7 | Fine for body text |
| Black text on #638313 | 4.78:1 | AA | Lc 33.8 | Non-text elements, placeholder text |
| #638313 text on white | 4.38:1 | AA large text | Lc 70.2 | Content text, not long reading |
| #638313 text on black | 4.78:1 | AA | Lc -31.4 | 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
#F4F6F1
oklch(97% 0.007 124.4)
-
Step 100
100
#E7ECE0
oklch(93.6% 0.017 125.3)
-
Step 200
200
#D4DDC5
oklch(88.4% 0.034 123.9)
-
Step 300
300
#B7C89D
oklch(80.9% 0.061 125.3)
-
Step 400
400
#92AC67
oklch(70.8% 0.098 125.6)
-
Step 500
500
#77963A
oklch(63% 0.125 125.5)
-
Step 600
600 (this color)
#638313
oklch(56.5% 0.136 125.4)
-
Step 700
700
#506C00
oklch(49.1% 0.124 125.4)
-
Step 800
800
#415806
oklch(42.6% 0.104 125.5)
-
Step 900
900
#374912
oklch(37.7% 0.082 125.8)
-
Step 950
950
#202B0C
oklch(27% 0.053 126.1)
#638313 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) | #8B7A00 | 0.061 |
| Deuteranopia (no green cones) | #867820 | 0.061 |
| Tritanopia (no blue cones) | #687C6F | 0.111 |
| Achromatopsia (no color) | #787878 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #638313
#638313
oklch(56.5% 0.136 125.4)
- #895EB5
#895EB5
oklch(56.5% 0.136 305.3)
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 #638313, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mossy Green #638B27 ΔE 0.023
- Sap Green #5C8B15 ΔE 0.024
- Swamp Green #748500 ΔE 0.024
- Olive Green #677A04 ΔE 0.025
- Murky Green #6C7A0E ΔE 0.027
- Moss Green #658B38 ΔE 0.031
- Swamp #698339 ΔE 0.031
- Olive Drab #6B8E23 ΔE 0.035
Use #638313 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.