#637430
Closest named color: Muddy Green (#657432). oklch(52.9% 0.095 121.5), rgb(99, 116, 48).
Aa
White text reads best on this color (5.15:1).
About this color
#637430 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 53%, its chroma 0.095 and its hue 121°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Muddy Green (#657432), ΔE 0.004 away. White text reads best on it, at 5.15:1.
| Hue family | Yellows |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.095) |
| Temperature | in between |
| Nearest name | Muddy Green (#657432) |
| Black text | 4.07:1 |
| White text | 5.15:1 |
Values
| HEX | #637430 |
| RGB | rgb(99, 116, 48) |
| HSL | hsl(75, 41%, 32%) |
| OKLCH | oklch(52.9% 0.095 121.5) |
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 #637430 | 5.15:1 | AA | Lc -80.8 | Fine for body text |
| Black text on #637430 | 4.07:1 | AA large text | Lc 28.6 | Dividers and decoration only |
| #637430 text on white | 5.15:1 | AA | Lc 75.5 | Fine for body text |
| #637430 text on black | 4.07:1 | AA large text | Lc -26.3 | 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
#F5F6F2
oklch(97.1% 0.005 117.9)
-
Step 100
100
#E8EBE2
oklch(93.5% 0.012 121.7)
-
Step 200
200
#D6DCCB
oklch(88.5% 0.024 122.8)
-
Step 300
300
#BCC5A7
oklch(80.8% 0.042 120.9)
-
Step 400
400
#9AA877
oklch(70.8% 0.07 121.1)
-
Step 500
500
#819254
oklch(63.1% 0.088 121.5)
-
Step 600
600 (this color)
#637430
oklch(52.9% 0.095 121.5)
-
Step 700
700
#59682A
oklch(49% 0.088 121.1)
-
Step 800
800
#495524
oklch(42.7% 0.073 121)
-
Step 900
900
#3D4622
oklch(37.6% 0.057 120.7)
-
Step 950
950
#242915
oklch(27% 0.035 120.3)
#637430 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) | #7B6E29 | 0.038 |
| Deuteranopia (no green cones) | #786D34 | 0.038 |
| Tritanopia (no blue cones) | #686E65 | 0.080 |
| Achromatopsia (no color) | #6D6D6D | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #637430
#637430
oklch(52.9% 0.095 121.5)
- #765E9A
#765E9A
oklch(53.1% 0.095 301.7)
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 #637430, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muddy Green #657432 ΔE 0.004
- Military Green #667C3E ΔE 0.025
- Dark Moss Green #606C38 ΔE 0.029
- Brown Green #706C11 ΔE 0.029
- Browny Green #6F6C0A ΔE 0.030
- Murky Green #6C7A0E ΔE 0.034
- Dark Olive Green #556B2F ΔE 0.035
- Olive Green #677A04 ΔE 0.036
Use #637430 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.