#637516
Closest named color: Olive Green (#677A04). oklch(53% 0.117 120.3), rgb(99, 117, 22).
Aa
White text reads best on this color (5.13:1).
About this color
#637516 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 53%, its chroma 0.117 and its hue 120°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Olive Green (#677A04), ΔE 0.019 away. White text reads best on it, at 5.13:1.
| Hue family | Yellows |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Olive Green (#677A04) |
| Black text | 4.08:1 |
| White text | 5.13:1 |
Values
| HEX | #637516 |
| RGB | rgb(99, 117, 22) |
| HSL | hsl(71, 68%, 27%) |
| OKLCH | oklch(53% 0.117 120.3) |
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 #637516 | 5.13:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #637516 | 4.08:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #637516 text on white | 5.13:1 | AA | Lc 75.3 | Fine for body text |
| #637516 text on black | 4.08:1 | AA large text | Lc -26.4 | 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
#F5F6F1
oklch(97.1% 0.007 115.7)
-
Step 100
100
#E8ECE0
oklch(93.7% 0.017 121.8)
-
Step 200
200
#D6DCC7
oklch(88.4% 0.029 120)
-
Step 300
300
#BCC6A0
oklch(80.9% 0.053 119.6)
-
Step 400
400
#99A96C
oklch(70.7% 0.085 120.6)
-
Step 500
500
#819343
oklch(63.1% 0.108 120.1)
-
Step 600
600 (this color)
#637516
oklch(53% 0.117 120.3)
-
Step 700
700
#596912
oklch(49.1% 0.109 120)
-
Step 800
800
#495613
oklch(42.8% 0.09 120)
-
Step 900
900
#3D4718
oklch(37.8% 0.07 120)
-
Step 950
950
#232A0F
oklch(27.1% 0.046 121.6)
#637516 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) | #7D6E00 | 0.041 |
| Deuteranopia (no green cones) | #7B6E1F | 0.043 |
| Tritanopia (no blue cones) | #696E63 | 0.099 |
| Achromatopsia (no color) | #6D6D6D | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #637516
#637516
oklch(53% 0.117 120.3)
- #775AA5
#775AA5
oklch(53% 0.118 300.3)
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 #637516, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Green #677A04 ΔE 0.019
- Murky Green #6C7A0E ΔE 0.021
- Muddy Green #657432 ΔE 0.024
- Browny Green #6F6C0A ΔE 0.029
- Brown Green #706C11 ΔE 0.031
- Military Green #667C3E ΔE 0.036
- Mud Green #606602 ΔE 0.044
- Dark Olive Green #556B2F ΔE 0.045
Use #637516 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.